Kilobat CLI
Free GPL-3.0-only macOS CLI for network diagnostics, Wi-Fi and traffic monitoring, with JSON output and a local MCP server. The desktop app is separate and proprietary.
Developer Tools
All Tools
1,942 free developer tools, updated daily
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1,942 tools
/meet for Slack
Start Google Meetings directly from Slack by using /meet in any channel, group, or DM. Free without any limitations.
Productivity
1.1.1.1
Free public DNS Resolver, which is fast and secure (encrypt your DNS query), provided by Cloudflare. Useful to bypass your internet provider's DNS blocking, prevent DNS query spying, and. It can also be used. Note: Just a DNS resolver, not a DNS hoster.
Infrastructure
360Converter
Free tier useful website to convert: Video to Text && Audio to Text && Speech to Text && Real-time Audio to Text && YouTube Video to Text && add Video Subtitle. Maybe it will be helpful in a short video conversion or in a short youtube tutorial:)
Other
360username
A free tool to search a username across 90+ social platforms to find matching profiles.
Other
3Dassets.one
Over 8,000 free/paid 3D models, and PBR materials for making textures.
Developer Tools
3v4l
Free online PHP shell and snippet-sharing site, that runs your code in 300+ PHP versions
Developer Tools
4EVERLAND
Compatible with AWS S3 - APIs, interface operations, CLI, and other upload methods, upload and store files from the IPFS and Arweave networks in a safe, convenient, and efficient manner. Registered users can get 6 GB of IPFS storage and 300MB of Arweave storage for free. Any Arweave file uploads smaller than 150 KB are free.
Cloud
8base.com
8base is a full-stack low-code development platform built for JavaScript developers built on top of MySQL and GraphQL and serverless backend-as-a-service. It allows you to start building web applications quickly using a UI app builder and scale quickly, The Free tier includes rows: 2,500, Storage: 500, Serverless computing: 1Gb/h, and client app users: 5.
Database
Abby
Open-Source feature flags & A/B testing. Configuration as Code & Fully Typed Typescript SDKs. Strong integration with Frameworks such as Next.js & React. Generous free tier and cheap scaling options.
Developer Tools
Ably
Realtime messaging service with presence, persistence and guaranteed delivery. The free plan includes 3m messages per month, 100 peak connections, and 100 peak channels.
Communication
Abstract API
API suite for various use cases, including IP geolocation, gender detection, or email validation.
Other
Accesserty Pulse
Monitors interaction signals and detectable accessibility risks on live websites. Free plans for everyone and 14-day Pro trial.
Monitoring
AccessLint
AccessLint brings automated web accessibility testing into your development workflow. It's free for open source and education purposes.
CI/CD
acquia.com
Hosting for Drupal sites. Free tier for developers. Free development tools (such as Acquia Dev Desktop) also available
Web Development
Activepieces
Build automation flows to connect several apps together in your app's backend. For example, send a Slack message or add a Google Sheet row when an event fires in your app. Free up to 5,000 tasks per month.
Backend
Adapty.io
One-stop solution with open-source SDK for mobile in-app subscription integration to iOS, Android, React Native, Flutter, Unity, or web app. Free up to $10k monthly revenue.
Payments
AdminMart
High-Quality Free and Premium Admin Dashboard and Website Templates created with Angular, Bootstrap, React, VueJs, NextJS, and NuxtJS!
Other
Agent QA
Runs natural-language web, Android and iOS tests with a local CLI, dashboard and MCP server. Source-available under FSL-1.1-ALv2 with no software fee for permitted use. Bring your own local or hosted model; model, hosting and device-provider costs are separate.
Testing
AhaSend
Transactional email service, free for 1000 emails per month, with unlimited domains, team members, webhooks and message routes in the free plan.
Communication
aikido.dev
All-in-one appsec platform covering SCA, SAST, CSPM, DAST, Secrets, IaC, Malware, Container scanning, EOL,... Free plan includes two users, scanning of 10 repos, 1 cloud, 2 containers & 1 domain.
Security
airtable.com
Looks like a spreadsheet, but it's a relational database, unlimited bases, 1,200 rows/base and 1,000 API requests/month
Database
Aiven
Aiven offers free PostgreSQL, MySQL and Valkey (Redis compatible) plans on its open-source data platform. Single node, 1 CPU, 1GB RAM, and for PostgreSQL and MySQL, 1GB storage. Easy migration to more extensive plans or across clouds.
Database
algolia.com
Hosted search-as-you-type (instant). Free hacker plan up to 10,000 documents and 100,000 operations. Bigger free plans available for community/Open Source projects
Development
algorithmia.com
Host algorithms for free. Includes free monthly allowance for running algorithms. Now with CLI support
Development
AllRatesToday
Real-time mid-market exchange rates for 150+ currencies with official JavaScript, Python, and PHP SDKs. Free tier includes 300 requests/month over HTTPS.
Payments
AlphaAI
Financial news API and MCP server. Every article gets per-ticker impact analysis, a category, and a 1-10 relevance score, and SEC Form 4 insider filings are turned into scored events. The free tier includes 20 requests per minute and 100 requests per day on both REST and MCP, no card required.
Other
Altcha.org
A Spam Filter for websites and APIs powered by natural language processing and machine learning. Free plan includes 200 requests a day per domain.
Security
Alwaysdata
100 MB free web hosting with support for MySQL, PostgreSQL, CouchDB, MongoDB, PHP, Python, Ruby, Node.js, Elixir, Java, Deno, custom web servers, access via FTP, WebDAV and SSH; mailbox, mailing list and app installer included.
Hosting
ampt.dev
Ampt lets teams build, deploy, and scale JavaScript apps on AWS without complicated configs or managing infrastructure. Free Preview plan includes 500 invocations hourly, 2,500 invocations daily and 50,000 invocations monthly. Custom domains are allowed only in the paid plans.
Cloud
Android Studio
Android Studio provides the fastest tools for building apps on every type of Android device. Open Source IDE is free for everyone and the best Android app development. Available for Windows, Mac, Linux, and even ChromeOS!
Developer Tools
AndroidFileHost
Free file-sharing platform with unlimited speed, bandwidth, file count, download count, etc. It is mainly aimed for Android dev-related files like APK build, custom ROM & modifications, etc. But seems to accept any other files as well.
Storage
AndroidIDE
An Open Source IDE to develop real, Gradle-based Android applications on Android devices.
Developer Tools
anon.li Alias
Open source, anonymous email alias/forwarding solution with PGP encryption, reply capability, 10 random & 1 custom alias on the free plan with developer API & CLI.
Email Services
anon.li Drop
Zero-knowledge E2EE file sharing with client-side AES-256-GCM encryption and zero server-side data access. Free uploads for files up to 5GB with max expiry up to 3 days through the website, CLI or API.
Other
AnonAddy
Open-source anonymous email forwarding, create unlimited email aliases for free
Communication
Ant Design Landing Page
Ant Design Landing Page provides a template built by Ant Motion's motion components. It has a rich homepage template, downloads the template code package, and can be used quickly. You can also use the editor to quickly build your own dedicated page.
Design
Antideo
10 API requests per hour for email verification, IP, and phone number validation in the free tier. No Credit Cards are required.
Communication
anvil.works
Web app development with nothing but Python. Free tier with unlimited apps and 30-second timeouts.
Cloud
Apache Netbeans
Development Environment, Tooling Platform and Application Framework.
Developer Tools
apiary.io
Collaborative design API with instant API mock and generated documentation (Free for unlimited API blueprints and unlimited user with one admin account and hosted documentation)
Development
apichangelog.com
Subscribe to be notified each time API Documentation is updated (Facebook, Twitter, Google,...)
Productivity
ApiFlash
A screenshot API based on Aws Lambda and Chrome. Handles full page, captures timing, and viewport dimensions.
API Tools
Apify
Web scraping and automation platform to create an API for any website and extract data. Ready-made scrapers, integrated proxies, and custom solutions. Free plan with $5 platform credits included every month.
Other
apigee.com
Unlimited trial includes NoSQL data store with 25 GB of storage, user and permission management, geolocation, 10 million push notifications/month, remote configuration, beta and A/B split testing, APM, fully API driven. Accessible and manageable via UI, SDK and API
Database
apimetrics.io
Automated API Performance Monitoring, Testing and Analytics. Free Plan, manually make API calls and Run from their West Coast servers
Analytics
APITemplate.io
Auto-generate images and PDF documents with a simple API or automation tools like Zapier & Airtable. No CSS/HTML is required. The free plan comes with 50 images/month and three templates.
Other
APIToolkit.io
All the tools you need to fully understand what's going on in your APIs and Backends. With automatic API contract validation and monitoring. The free plan covers servers with up to 10,000 requests per day.
Other
APIVerve
Get instant access to over 120+ APIs for free, built with quality, consistency, and reliability in mind. The free plan covers up to 50 API Tokens per month.
Other
appacitive.com
Mobile backend, free for the first 3 months with 100,000 API calls, push notifications
Database
appbeat.io
Website monitoring, 3 monitors free. They offer very reliable and affordable monitor service.
Analytics
appcircle.io
An enterprise-grade mobile DevOps platform that automates the build, test, and publish store of mobile apps for faster, efficient release cycle. Free for 30 minutes max build time per build, 20 monthly builds and 1 concurrent build.
CI/CD
appdynamics.com
Free for 24 hours metrics, application performance management agents limited to one Java, one .NET, one PHP and one Node.js
Analytics
Appetize
Test your Android & iOS apps on this Cloud Based Android Phone / Tablets emulator and iPhone/iPad simulators directly in your browser. The free tier includes two concurrent session with 30 minutes of usage per month. No limit on app size.
Developer Tools
AppFit
AppFit is a comprehensive analytics and product management tool designed to facilitate seamless, cross-platform management of analytics and product updates. Free plan includes 10,000 events per month, product journal and weekly insights.
Analytics
Appho.st
Mobile app hosting platform. The free plan includes five apps, 50 monthly downloads, and a maximum file size of 100 MB.
Developer Tools
Appinvento
AppInvento is a free No code app builder. In the automatically generated backend code, users have complete access to the source code and unlimited APIs and routes, allowing for extensive integration. The free plan includes three projects, five tables, and a Google add-on.
AI & Machine Learning
Appish
Host Docker containers for demos with just a docker push. Free tier includes 1 slot with 2-hour sessions.
Infrastructure
Application Services
Free DNS for an unlimited number of domains, DDoS Protection, CDN along with free SSL, Firewall rules and page rules, WAF, Bot Mitigation, Free Unmetered Rate Limiting - 1 rule per domain, Analytics, Email forwarding
Cloud
Applitools.com
smart visual validation for web, native mobile and desktop apps. Integrates with almost all automation solutions (like Selenium and Karma) and remote runners (Sauce Labs, Browser Stack). free for open source. A free tier for a single user with limited checkpoints per week.
Development
APPLORE App Icon Generator
Exports every iOS, Android adaptive and web icon size from one image. Quick export is free, runs in the browser and needs no account
Design
Apply.build
Build and deploy your GitHub app for free with 0.5 vCPUs / 512 MiB RAM, European servers, automatic firewall, real-time performance metrics. Run Node.js, Python, Go, Java, static sites, microservices, and more.
Cloud Computing
appsmith
Low code project to build admin panels, internal tools, and dashboards. Integrates with 15+ databases and any API.
Developer Tools
appspector.com
Mission control for remote iOS/Android/Flutter debugging. Free for small traffic usage (64MB of logs).
Monitoring
Apptim
A mobile testing tool that enables people without performance engineering skills to evaluate an app's performance and user experience (UX). A desktop version using your own device is 100% FREE, with unlimited tests on both iOS and Android.
Developer Tools
appwrite
Unlimited projects with no project pausing (supports websockets) and authentication service. 1 Database, 3 Buckets, 5 Functions per project in free tier.
Cloud
Aptabase
Open Source, Privacy-Friendly, and Simple Analytics for Mobile and Desktop Apps. SDKs for Swift, Kotlin, React Native, Flutter, Electron, and many others. Free for up to 20,000 events per month.
Analytics
Argonaut
Deploy apps and infrastructure on your cloud in minutes. Support for custom and third-party app deployments on Kubernetes and Lambda environments. The free tier allows unlimited apps and deployments for 5 domains and 2 users.
CI/CD
Argos
Open Source visual testing for developers. Unlimitedprojects, with 5,000 screenshots per month. Free for open-source projects.
Developer Tools
Arize AI
Machine learning observability for model monitoring and root-causing issues such as data quality and performance drift. Free up to two models.
Other
Artifactory
An artifact repository that supports numerous package formats like Maven, Docker, Cargo, Helm, PyPI, CocoaPods, and GitLFS. Includes package scanning tool XRay and CI/CD tool Pipelines (formerly Shippable) with a free tier of 2,000 CI/CD minutes per month.
Developer Tools
ArtStation
MarketPlace for Free/Paid 2D, 3D assets & audios, icons, tile sets, game kits. Also, It can be used for showcasing your art portfolio.
Developer Tools
Arukas Cloud
Free docker container hosting, 10 during beta period, 3 afterwards (Japanese)
Development
Aserto
Fine-grained authorization as a service for applications and APIs. Free up to 1000 MAUs and 100 authorizer instances.
Security
asgardeo.io
Seamless Integration of SSO, MFA, passwordless auth and more. Includes SDKs for frontend and backend apps. Free up to 1000 MAUs and five identity providers.
Security
asp.net
The Microsoft Ajax CDN hosts popular third party JavaScript libraries such as jQuery and enables you to easily add them to your Web application
Web Development
assertible.com
Automated API testing and monitoring. Free plans for teams and individuals.
Monitoring
atomist.com
A quicker and more convenient way to automate various development tasks. Now in beta.
Security
Audio Enhancer
AI-powered audio enhancer SaaS that removes noise and echo while preserving natural vocal clarity. totally Free: unlimited one-click enhancements, no login required, supports MP3/WAV/FLAC
AI & Machine Learning
Authgear
Bring Passwordless, OTPs, 2FA, SSO to your apps in minutes. All Front-end included. Free up to 5000 MAUs.
Security
Authress
Authentication login and access control, unlimited identity providers for any project. Facebook, Google, Twitter and more. The first 1000 API calls are free.
Security
Authy
Two-factor authentication (2FA) on multiple devices, with backups. Drop-in replacement for Google Authenticator. Free for up to 100 successful authentications.
Security
AutoLocalise.com
Instantly localize without managing translation files. Free for up to 10,000 characters/month, unlimited languages.
Productivity
Avo
Simplified analytics release workflow. Single-source-of-truth tracking plan, type-safe analytics tracking library, in-app debuggers, and data observability to catch all data issues before you release. Free for two workspace members and 1 hour data observability lookback.
Analytics
Awardspace.com
Free web hosting + a free short domain, PHP, MySQL, App Installer, Email Sending & No Ads.
Hosting
awwwards.
[Top websites] A showcase of all the best-designed websites (voted on by designers).
Design
Axiom
Store up to 0.5 TB of logs with 30-day retention. Includes integrations with platforms like Vercel and advanced data querying with email/Discord notifiers.
Monitoring
Axonomy App
A free tool to create, manage and share your invoices with your clients. 10 free invoices per month.
Other
AyeDot
Share your ideas, knowledge, and stories with the world for Free in the form of Modern multimedia short-format Miniblogs.
Content
Azure Pipelines
10 free parallel jobs with unlimited minutes for open source for Linux, macOS, and Windows
Cloud
back4app.com
Back4App is an easy-to-use, flexible and scalable backend based on Parse Platform.
Backend
backblaze.com
Backblaze B2 cloud storage. Free 10 GB (Amazon S3-like) object storage for unlimited time
Web Development
backendless.com
Mobile and Web Baas, with 1 GB file storage free, push notifications of 50,000/month, and 1000 data objects in the table.
Backend
BackgroundStyler.com
Create aesthetic screenshots of your code, text or images to share on social media.
Other
Backlight
With collaboration between developers and designers at heart, Backlight is a complete coding platform where teams build, document, publish, scale, and maintain Design Systems. The free plan allows up to 3 editors to work on one design system with unlimited viewers.
Design
Backlog
Everything your team needs to release great projects in one platform. The free plan offers 1 Project with ten users & 100MB of storage.
Productivity
Basecamp
To-do lists, milestone management, forum-like messaging, file sharing, and time tracking. Up to 3 projects, 20 users, and 1GB of storage space.
Productivity
Basedash
Low-code platform for building internal admin panels and dashboards. Supports SQL databases and REST APIs.
Developer Tools
BBEdit
BBEdit is a popular and extensible editor for macOS. Free Mode provides a and an upgrade path to advanced features.
Developer Tools
Beampipe.io
Beampipe is simple, privacy-focussed web analytics. free for up to 5 domains & 10k monthly page views.
Analytics
beanstalkapp.com
A complete workflow to write, review and deploy code), free account for 1 user and 1 repository with 100 MB of storage
Development
Bearer
Helps implement privacy by design via audits and continuous workflows so that organizations comply with GDPR and other regulations. The free tier is limited to smaller teams and the SaaS version only.
Security
Beeceptor
No-code, cloud-based platform for mocking and debugging multi-protocol APIs (REST, SOAP, gRPC & GraphQL), providing instant servers with rules-based logic, CRUD & stateful mocking, proxying, and CORS management for faster integration and testing. The free plan includes 50 requests per day and provides a public dashboard/endpoint where anyone with the dashboard URL can view submitted requests and responses.
Other
Behance
[Design showcase] A place where designers showcase their work. Filterable with categories for UI/UX projects.
Design
Bencher
A continuous benchmarking tool suite to catch CI performance regressions. Free for all public projects.
Developer Tools
Better Stack
Uptime monitoring, incident management, on-call scheduling/alerting, and status pages in a single product. The free plan includes ten monitors with 3-minute check frequency and status pages.
Monitoring
BigDataCloud
Provides fast, accurate, and free (Unlimited or up to 10K-50K/month) APIs for modern web like IP Geolocation, Reverse Geocoding, Networking Insights, Email and Phone Validation, Client Info and more.
Other
bigml.com
Hosted machine learning algorithms. Unlimited free tasks for development, limit of 16 MB data/task
Development
Binder
Turn a Git repo into a collection of interactive notebooks. It is a free public service.
Developer Tools
BinShare.net
Create & share code or binaries. Available to share as a beautiful image e.g. for Twitter / Facebook post or as a link e.g. for chats or forums.
Other
bintray.com
Binary File storage, free for Open Source. Includes SSL, CDN and a limited number of REST calls
Content Creation
bip.io
A web-automation platform for easily connecting web services. Fully open GPLv3 to power the backend of your Open Source project. Commercial OEM License available
Database
bismuth.cloud
Our AI will boostrap your Python API on our function runtime and hosted storage, build and host for free in our online editor or locally with your favorite tools.
Backend
bitbucket.org
Unlimited public and private repos (Git and Mercurial) for up to 5 users
Development
bitninja.io
Botnet protection through a blacklist, free plan only reports limited information on each attack
Security
Bitwarden
The easiest and safest way for individuals, teams, and business organizations to store, share, and sync sensitive data.
Productivity
blackfire.io
Blackfire is the SaaS-delivered Application Performance Solution. Free Hacker plan (PHP only)
Analytics
blacksmith
Managed performance runners for GitHub Actions that provides 3,000 free minutes per month, with no credit card needed.
CI/CD
blamewarrior.com
Tool to automatically assign reviewers for new pull requests and track statistics of review process, free for Open Source
Development
bleemeo.com
Free for 3 servers, 5 uptime monitors, unlimited users, unlimited dashboards, unlimited alerting rules.
Monitoring
BlueJ
A free Java Development Environment designed for beginners, used by millions worldwide. Powered by Oracle & simple GUI to help beginners.
Developer Tools
Blynk
A SaaS with API to control, build & evaluate IoT devices. Free Developer Plan with 5 devices, Free Cloud & data storage. Mobile Apps are also available.
Other
BMC Developer Program
The BMC Developer Program provides documentation and resources to build and deploy digital innovations for your enterprise. Access to a comprehensive, personal sandbox that includes the platform, SDK, and a library of components that can be used to build and tailor apps.
Backend
Bohr
Free for non commercial projects + Developer-First Deployment and Development Platform that minimizes infrastructure hassle and speed up setup.
Hosting
BookmarkOS.com
Free all-on-one bookmark manager, tab manager, and task manager in a customizable online desktop with folder collaboration.
Productivity
boomurl
Publish static sites (HTML/Markdown/images/PDF or a whole folder) to an instant HTTPS URL with no account; free tier shows a small banner. Custom domains supported.
Hosting
borgbase.com
Simple and secure offsite backup hosting for Borg Backup. 10 GB free backup space and two repositories.
Storage
BoxySVG
A free installable Web app for drawing SVGs and exporting in SVG, PNG, jpeg, and other formats.
Design
Brackets
Brackets is an open-source text editor specifically designed for web development. It is lightweight, easy to use, and highly customizable.
Developer Tools
Braid
Chat app designed for teams. Free for public access group, unlimited users, history, and integrations. also, it provides a self-hostable open-source version.
Productivity
Brainboard
Collaborative solution to visually build and manage cloud infrastructures from end-to-end.
Cloud
braintreepayments.com
Credit Card, Paypal, Venmo, Bitcoin, Apple Pay,... integration. Single and Recurrent Payments. First USD 50,000 free
Business
Braintrust
Evals, prompt playground, and data management for Gen AI. Free plan gives upto 1,000 private eval rows/week.
AI & Machine Learning
Branch
Mobile Analytics Platform. Free Tier offers up to 10K Mobile App Users with deep-linking & other services.
Analytics
Brave Search API
Independent web, news, image, video search and AI/LLM context API, suitable for RAG pipelines and AI agents. Free tier includes $5 in monthly credits (credit card required for verification).
Other
Bricks Note Calculator
a note-taking app (PWA) with a powerful built-in multiline calculator.
Other
Browse AI
Extracting and monitoring data on the web. 1k credits per month for free, equals 1k concurrent requests.
Other
BrowserCat
Headless browser API for automation, scraping, AI agent web access, image/pdf generation, and more. Free plan with 1k requests per month.
Other
browserling.com
Live interactive cross-browser testing, free only 3 minutes sessions with MS IE 9 under Vista at 1024 x 768 resolution
Development
btunnel
Expose localhost and local tcp server to the internet. Free plan includes file server, custom http request and response headers, basic auth protection and 1 hour tunnel timeout.
Infrastructure
Bubble
Visual programming to build web and mobile apps without code, free with Bubble branding.
Hosting
bubble.is
Visual programming to build web and mobile apps without code, free 100 visitors/month, 2 apps
Web Development
buddy.works
One free private project with a Git repository and continuous delivery integrated
Development
buddybuild.com
Build, deploy and gather feedback for your iOS and Android apps in one seamless, iterative system
Development
BudiBase
Budibase is an open-source low-code platform for creating internal apps in minutes. Supports PostgreSQL, MySQL, MSSQL, MongoDB, Rest API, Docker, K8s
Developer Tools
BugBug
Lightweight test automation tool for web applications. It is easy to learn and doesn't require coding. You can run unlimited tests on your own computer for free. You also get cloud monitoring and CI/CD integration for an additional monthly fee.
Developer Tools
Bugsink
Error-tracking with Sentry-SDK compatability. Free for up to 5,000 errors/month, or unlimited use when self-hosted.
Monitoring
build.opensuse.org
Package build service for multiple distros (SUSE, EL, Fedora, Debian etc.)
Development
C2 Object Storage
S3 compatibility object storage. 15 GB free storage and 15 GB downloads per month.
Cloud
c9.io
IDE in a browser. Incorporates an Ubuntu virtual machine and in-browser terminal access. Integrates with GitHub and BitBucket, but also adds SFTP and generic Git access
Development
CacheFly
Up to 5 TB per month of Free CDN traffic, 19 Core PoPs , 1 Domain and Universal SSL.
CDN
cacher.io
Code snippet organizer with labels and support for 100+ programming languages.
Developer Tools
cacoo.com
Online diagrams in real-time: flowchart, UML, network. Free max. 15 users/diagram, 25 sheets
Productivity
Calendar Icons Generator
- Generate an entire year's worth of unique icons in a single click, absolutely FREE
Design
Calendarific
Enterprise-grade Public holiday API service for over 200 countries. The free plan includes 500 calls per month.
Other
Calendly
Calendly is the tool for connecting and scheduling meetings. The free plan provides 1 Calendar connection per user and Unlimited sessions. Desktop and Mobile apps are also offered.
Productivity
cally.com
Find the perfect time and date for a meeting. Simple to use, works great for small and large groups.
Productivity
canister.io
20 free private repositories for developers, 30 free private repositories for teams to build and store Docker images
Development
Canopy
GraphQL API for Amazon.com product, search, and category data. The free plan includes 100 calls per month.
Other
CarAPI.dev
Comprehensive automotive data API with VIN decoding, stolen vehicle checks, vehicle valuation, inspection data, and more. Free tier includes 100 requests/month across all 9 endpoints.
Other
Carbon.now.sh
create and share code snippets in an aesthetic screenshot-like image format. Usually used to aesthetically share/show off code snippets on Twitter or blog posts.
Other
CatchDoms
Aggregator of expired and dropping domain listings from 16 marketplaces, with SEO enrichment (backlinks, Trust Flow, Wayback history) and a quality score. Free plan: 10 unlocked listings, 5 favorites, 3 saved searches. 7-day Pro trial on signup includes full REST API and MCP server access.
Other
CatchJS.com
JavaScript error tracking with screenshots and click trails. Free for open-source projects.
Monitoring
CD Calculator
Free calculator for comparing certificate of deposit terms, APY, and maturity value across multiple CD lengths, no signup required
Other
cDox
Private document editor hosted in Canada. Write, format, collaborate, and publish documents with clean public links. Data is never used for AI training. Free plan includes 50 MB storage, up to 3 public links, and export to PDF, Word, and Markdown.
Collaboration
Census
Reverse ETL & Operational Analytics Platform. Sync 10 fields from your data warehouse to 60+ SaaS like Salesforce, Zendesk, or Amplitude.
Analytics
central.sonatype.org
The default artifact repository for Apache Maven, SBT, and other build systems.
Developer Tools
Cerbos Hub
A complete authorization management system for authoring, testing, and deploying access policies. Fine-grained authorization and access control, free up to 100 monthly active principals.
Security
CertKit
Manage SSL Certificate issuance, renewal, and monitoring. Search the Certificate Transparency Logs. Free for 3 certificates and 1 user after the beta.
Other
CertObserver CT Search
Find public SSL/TLS certificates recorded in Certificate Transparency logs. CT search is free but CT monitoring is not.
Other
Chanty.com
Chanty is another alternative to Slack. It has a free forever plan for small teams (up to 10) with unlimited public and private conversations, searchable history, unlimited 1:1 audio calls, unlimited voice messages, ten integrations, and 20 GB storage per team.
Productivity
checkbot.io
Browser extension that tests if your website follows 50+ SEO, speed and security best practices. Free tier for smaller websites.
Developer Tools
Checkly
Code-first synthetic monitoring for modern DevOps. Monitor your APIs and apps at a fraction of the price of legacy providers. Powered by a Monitoring as Code workflow and Playwright. Generous free tier for devs.
Developer Tools
Choreo
AI-native internal developer platform as a service. The free tier includes up to 5 components and $100 credits per month.
Cloud
Chpokify
Teams-based Planning Poker that saves time on sprint estimation. Free up to 5 users, free Jira integrations, unlimited video calls, unlimited teams, unlimited sessions.
Productivity
Churnkey
Cancel flows (open-sourced), churn metrics, and revenue analytics for subscription businesses. Free forever.
Payments
Cisco Networking Academy, Skills for All
Offers free certification-aligned courses in topics like cybersecurity, networking, and Python.
Education
Clair
Clinical AI Reference. Students have free access to the professional tool suite, which includes Open Search, Clinical Summary, Med Review, Drug Interactions, ICD-10 Codes, and Stewardship. Additionally, a free trial for the professional suite is available.
AI & Machine Learning
Clappia
A low-code platform designed for building business process applications with customizable mobile and web apps. Offers a drag-and-drop interface, features like Offline Support, real-time location tracking and integration with various third-party services
Developer Tools
Clarifai
Image API for custom face recognition and detection. Able to train AI models. The free plan has 1,000 calls per month.
Other
Claw.cloud
A PaaS platform offering $5/month in free credits for users with a GitHub account older than 180 days. Perfect for hosting apps, databases, and more. ().
Backend
Clerk
User management, authentication, 2FA/MFA, prebuilt UI components for sign-in, sign-up, user profiles, and more. Free up to 10,000 monthly active users.
Security
clevebrush.com
Free Graphics Design / Photo Collage App. Also, they offer paid integration of it as a component.
Design
Clever Cloud
European PaaS with automated deployments, autoscaling, managed databases, and Git-based workflows. Includes €20 free credits at signup, a limited DEV plan with free MySQL and PostgreSQL databases, and free allowances for services like Heptapod and FS Buckets.
Cloud Computing
clickup.com
Project management. Free, premium version with cloud storage. Mobile applications and Git integrations are available.
Productivity
Clicky
Website Analytics Platform. Free Plan for one website with 3000 views analytics.
Analytics
Cloady
Deploy applications and databases from GitHub, Docker images or templates. Ongoing free workspace allowance: 0.5 vCPU, 1 GB RAM, 5 GB SSD and 200 GB traffic; no credit card required. Exceeding any free CPU, RAM or SSD allowance makes the full configured capacity billable.
Hosting
Clockify
Time tracker and timesheet app that lets you track work hours across projects. Unlimited users, free forever.
Productivity
Clockwork Micro
Map tools that work like clockwork. Fifty thousand free monthly queries (map tiles, db2vector, elevation).
Analytics
closeheat.com
Development Environment in the Cloud for Static Websites with Free Hosting and GitHub integration. 1 free website with custom domain support
Web Development
Cloud 66
Free for personal projects (includes one deployment server, one static site), Cloud 66 gives you everything you need to build, deploy, and grow your applications on any cloud without the headache of the “server stuff.”.
Cloud
Cloud-IAM
Keycloak Identity and Access Management as a Service. Free up to 100 users and one realm.
Security
cloud.google.com
Free private Git repositories hosted on Google Cloud Platform. Supports syncing with existing GitHub and Bitbucket repos. Free Beta for up to 500 MB of storage
Development
cloud.sagemath.com
Collaborative mathematics-oriented IDE in a browser, with support for Python, LaTeX, IPython Notebooks, etc
Development
cloudamqp.com
RabbitMQ as a Service. Little Lemur plan: max 1 million messages/month, max 20 concurrent connections, max 100 queues, max 10,000 queued messages, multiple nodes in different AZ's
Web Development
cloudandheat.com
128 MB of RAM for free, includes support for custom domains for free
Web Development
CloudCertPrep
Free, open-source AWS certification practice exams with 1,050+ questions for CLF-C02. Features timed mock exams, domain practice, spaced repetition, and progress tracking.
Education
cloudconvert.com
Convert anything to anything. 208 supported formats including videos to gif
Design
Cloudcraft
Design a professional architecture diagram in minutes with the Cloudcraft visual designer, optimized for AWS with intelligent components that show live data too. Free plan has unlimited private diagrams for single user.
Productivity
Cloudflare Tunnel
You can expose locally running HTTP port over a tunnel to a random subdomain on trycloudflare.com use, No account required. More features (TCP tunnel, Load balancing, VPN) in Free Plan.
Cloud
cloudflare.com
Basic service is free, good for a blog, it also offers a free SSL certificate service
Web Development
cloudimage.io
Full image optimization and CDN service with 1500+ Points of Presence around the world. A variety of image resizing, compression, and watermarking functions. Open source plugins for responsive images, 360 image making and image editing. Free monthly plan with 25GB of CDN traffic 25GB of cache storage and unlimited transformations.
Storage
cloudinary.com
Image upload, powerful manipulations, storage and delivery for sites and apps, with libraries for Ruby, Python, Java, PHP, Objective-C and more. Perpetual free tier includes 7,500 images/month, 2 GB storage, 5 GB bandwidth
Content Creation
CloudMailin
Incoming email via HTTP POST and transactional outbound - 10,000 free emails/month
Communication
Cloudmersive
Utility API platform with full access to expansive API Library including Document Conversion, Virus Scanning, and more with 600 calls/month, North America AZ only, 2.5MB maximum file size.
Other
cloudrail.com
API integration solution. Unified interfaces for multiple web APIs, API change management
Development
cloudrepo.io
Cloud-based, private and public, Maven and PyPi repositories. Free for open-source projects.
Developer Tools
cloudsmith.io
Simple, secure, and centralized repository service for Java/Maven, RedHat, Debian, Python, Ruby, Vagrant, and more. Free tier + free for open source.
Developer Tools
cloudsploit.com
Amazon Web Services (AWS) security and compliance auditing and monitoring
Security
CMYK Pantone
Easily convert CMYK values to the closest Pantone colors and other color models in seconds for free.
Design
cnverg.com
Real-time shared visual workspace, whiteboard, GitHub integration. Free 5 GB, 5 spaces and 5 collaborators, no GitHub repos
Productivity
cocalc.com
(formerly SageMathCloud at cloud.sagemath.com) - Collaborative calculation in the cloud. Browser access to full Ubuntu with built-in collaboration and lots of free software for mathematics, science, data science, preinstalled: Python, LaTeX, Jupyter Notebooks, SageMath, scikitlearn, etc.
Developer Tools
CockroachDB Cloud
Free tier offers 50 million RUs and 10 GiB of storage (same as 15$ worth) free per month. ()
Database
codacy.com
Automated code reviews for PHP, Python, Ruby, Java, JavaScript, Scala, CSS and CoffeeScript, free for Open Source
Development
Code Time
an extension for time-tracking and coding metrics in VS Code, Atom, IntelliJ, Sublime Text, and more.
Other
Code::Blocks
Free Fortran & C/C++ IDE. Open Source and runs on Windows,macOS & Linux.
Developer Tools
code.cs50.io
Visual Studio Code for CS50 is a web app at code.cs50.io that adapts GitHub Codespaces for students and teachers.
Developer Tools
Codeac.io
Automated Infrastructure as Code review tool for DevOps integrates with GitHub, Bitbucket, and GitLab (even self-hosted). In addition to standard languages, it also analyzes Ansible, Terraform, CloudFormation, Kubernetes, and more.
Developer Tools
codeanywhere.com
Full IDE in the browser and mobile apps. Access FTP, SFTP, Dropbox, Google Drive, GitHub and BitBucket. Hosted virtual machines with terminal access. Collaboration features like share links, live editing, permissions and version tracking
Development
Codeberg
Unlimited public and private Git repos for free and open-source projects (with unlimited collaborators). Powered by. Static website hosting with. CI/CD hosting with. Translating hosting with. Includes Package and Container hosting, Project management, and Issue Tracking
Developer Tools
CodedThemes
Offers a well-crafted admin dashboard & and UI kits designed to simplify and speed up modern web development.
Design
CodeFactor
Automated Code Review for Git. The free version includes unlimited users, public repositories, and one private repo.
Developer Tools
codefresh.io
Free-for-Life plan: 1 build, 1 environment, shared servers, unlimited public repos
Development
Codegiant
Project Management with Repository hosting & CI/CD. Free Plan Offers Unlimited Repositories, Projects & Documents with 5 Team Members. 500 CI/CD minutes per month. 30000 Serverless Code Run minutes per month 1GB repository storage.
Productivity
codehooks.io
Easy to use JavaScript serverless API/backend and NoSQL database service with functions, Mongdb-ish queries, key/value lookups, a job system, realtime messages, worker queues, a powerful CLI and a web-based data manager. Free plan has 5GB storage and 60/API calls per minute. 2 developers included. No credit-card required.
Database
CodeKeep
Google Keep for Code Snippets. Organize, Discover, and share code snippets, featuring a powerful code screenshot tool with preset templates and a linking feature.
Developer Tools
CodeMagic
Codemagic is a fully hosted and managed CI/CD for mobile apps. You can build, test, and deploy with a GUI-based CI/CD tool. The free tier offers 500 free minutes/month and a Mac Mini instance with 2.3 GHz and 8 GB of RAM.
Developer Tools
codenameone.com
Open source, cross-platform, mobile app development toolchain for Java/Kotlin developers. Free for commercial use with an unlimited number of projects
Cloud
CodeNotary.io
Open Source platform with indelible proof to notarize code, files, directories, or container
Security
codenvy.com
IDE and automated developer workspaces in a browser, collaborative, Git/SVN integration, build and run your app in customizable Docker-based runners (free tier includes: 4 GB RAM, always-on machines, ability to run multiple machines simultaneously), pre-integrated deploy to Google Apps
Development
codepunker.com
Uses CacheFly CDN. Free CDN for static assets (CSS and JavaScript files)
Web Development
coderabbit.ai
AI-powered code review tool that integrates with GitHub/GitLab. Free tier includes 200 files/hour, 3 reviews per hour, and 50 conversations/hour. Free forever for open source projects.
Developer Tools
codescene.io
CodeScene prioritizes technical debt based on how the developers work with the code and visualizes organizational factors like team coupling and system mastery. Free for Open Source.
Developer Tools
codesnip.com.br
Simple code snippets manager with categories, search and tags. free and unlimited.
Developer Tools
CodeTrain
AI coding tutor that teaches you on your own codebase and never writes the code for you. Free tier: 10 in-browser lessons/month, Python/JS run client-side, no card required.
Education
codiga.io
Coding Assistant that lets you search, define, and reuse code snippets directly in your IDE. Free for individual and small organizations.
Developer Tools
CodSpeed
Automate performance tracking in your CI pipelines. Catch performance regressions before deployment, thanks to precise and consistent metrics. Free forever for Open Source projects.
Developer Tools
Cody
Free AI coding assistant that can write (Code blocks, autocomplete, unit tests), understand (knowledge of your entire codebase), fix, and find your code. Available for VS Code, JetBrains and Online.
Developer Tools
cognalys.com
Freemium mobile number verification through an innovative and reliable method than using SMS gateway. Free 10 tries and 15 verifications/day
Mobile Development
Cognitive Services
AI/ML APIs (Computer Vision, Translator, Face detection, Bots, etc) with free tier including limited transactions
Cloud
CoinGecko
Provides cryptocurrency market data including the latest crypto exchange rates and historical data. The demo api comes with a stable rate limit of 30 calls/min and a monthly cap of 10,000 calls.
API Tools
CoinMarketCap
Provides cryptocurrency market data including the latest crypto and fiat currency exchange rates. The free tier offers 10K call credits/month.
API Tools
Comet Opik
Evaluate, test, and ship LLM applications across your dev and production lifecycles. [#opensource]
AI & Machine Learning
CometML
The MLOps platform for experiment tracking, model production management, model registry, and complete data lineage, covering your workflow from training to production. Free for individuals and academics.
Other
CommandBar
Unified Search Bar as-a-service, web-based UI widget/plugin that allows your users to search contents, navigations, features, etc. within your product, which helps discoverability. Free for up to 1,000 Monthly Active Users, unlimited commands.
API Tools
Commerce Layer
Composable commerce API that can build, place, and manage orders from any front end. The developer plan allows 100 orders per month and up to 1,000 SKUs for free.
Other
Compare JSON
An online tool for comparing differences between two JSON data structures, helping you quickly locate the differences in JSON data.
Other
Components.studio
Code components in isolation, visualize them in stories, test them, and publish them on npm.
Developer Tools
Composio
Integration platform for AI Agents and LLMs. Integrate over 200+ tools across the agentic internet.
Other
Concord
Full data privacy platform, including consent management, privacy request handling (DSARs), and data mapping. Free tier includes core consent management features and they also provide a more advanced plan for free to verified open source projects.
Security
Conduit
Turn incoming emails into webhooks to trigger your API from emails. The service is completely free.
Email Services
ConfigCat
ConfigCat is a developer-centric feature flag service with unlimited team size, excellent support, and a reasonable price tag. Free plan up to 10 flags, two environments, 1 product, and 5 Million requests per month.
Developer Tools
configure.it
Mobile app development platform, free for 2 projects, limited features but no resource limits
Web Development
Confluence
Atlassian's content collaboration tool is used to help teams collaborate and share knowledge efficiently. Free plan for up to 10 users.
Productivity
connectycube.com
Unlimited chat messages, p2p voice & video calls, files attachments and push notifications. Free for apps up to 1000 users.
Backend
Container Registry Service
Harbor based Container Management Solution. The free tier offers 1 GB of storage for private repositories.
Developer Tools
contentful.com
Content as a Service. Content management and delivery APIs in the cloud. 3 users, 3 repositories and 100,000 API requests/month for free
Web Development
context.io
Create simple email webhooks and code against a free, RESTful, imap API to leverage email data
Development
contriber.com
Customizable project management platform, free starter plan, 5 workspaces
Productivity
Conversion Tools
Online File Converter for documents, images, video, audio, and eBooks. REST API is available. Libraries for Node.js, PHP, Python. Support files up to 50 GB (for paid plans). The free tier is limited by file size (20MB) and number of conversions (30/Day, 300/Month).
Other
convex.dev
Reactive backend as a service, hosting your data (documents with relationships & serializable ACID transactions), serverless functions, and WebSockets to stream updates to various clients. Free for small projects - up to 1M records, 5M monthly function calls.
Backend
conveyor.cloud
Visual Studio extension to expose IIS Express to the local network or over a tunnel to a public URL.
Infrastructure
Cookiefirst
Cookie banners, auditing, and multi-language consent management solution. The free tier offers a one-time scan and a single banner.
Security
Corbado
Add passkey-first authentication to new or existing apps. Free for unlimited MAUs.
Security
Corgea
Free autonomous security platform that finds, validates and fixes insecure code and packages across +20 languages and frameworks. Free plan includes 1 user and 2 repos.
Other
CORS-Tester
A free tool for developers and API testers to check if an API is CORS-enabled for a given domain and identify gaps. Get actionable insights.
Developer Tools
Couchbase Capella
deploy a forever free tier fully managed database cluster with 1 node and 8GB storage, built for developers to create the next generation of applications across IoT to AI
Database
counter.dev
Web analytics made simple and therefore privacy friendly. Free or pay what you want by donation.
Analytics
Country-State-City Microservice API
API and Microservice to provides a wide range of information including countries, regions, provinces, cities, postal codes, and much more. The free tier includes up to 100 requests per day.
Other
Coupler
Data integration tool that syncs between apps. It can create live dashboards and reports, transform and manipulate values, and collect and back up insights. The free plan is limited to one user, data connection, data source, and data destination. Also requires manual data refresh.
Other
courier.com
Single API for push, in-app, email, chat, SMS, and other messaging channels with template management and other features. The free plan includes 10,000 messages/mo.
Communication
CraftMyPDF
Auto-Generate PDF documents from reusable templates with a drop-and-drop editor and a simple API. The free plan comes with 100 PDFs/month and three templates.
Other
CraftPix
Free/Paid assets like 2D, 3D, Audio, GUI, backgrounds, icons, tile sets, game kits.
Developer Tools
CrateDB
Distributed Open Source SQL database for real-time analytics.: One-node with 2 CPUs, 2 GiB of memory, 8 GiB of storage. One cluster per organization, no payment method needed.
Database
Crawlbase
Crawl and scrape websites without proxies, infrastructure, or browsers. We solve captchas for you and prevent you from being blocked. The first 1000 calls are free of charge.
Other
cronitor.io
Performance insights and uptime monitoring for cron jobs, websites, APIs and more. A free tier with five monitors.
Monitoring
Crosswork
Versatile project management platform. Free for up to 3 projects, unlimited users, 1 GB storage.
Productivity
crypteron.com
Cloud-first, developer-friendly security platform prevents data breaches in .NET and Java applications
Security
Crystallize
Headless PIM with ecommerce support. Built-in GraphQL API. The free version includes unlimited users, 1000 catalog items, 5 GB/month bandwidth, and 25k/month API calls.
CMS
css-gradient.com
Free tool to quickly generate custom cross-browser CSS gradients. In RGB and HEX format.
Design
Cube
Cube helps data engineers and application developers access data from modern data stores, organize it into consistent definitions, and deliver it to every application. The fastest way to use Cube is with Cube Cloud, which has a free tier limited to 1,000 queries per day.
Other
CurlHub
Proxy service for inspecting and debugging API calls. The free plan includes 10,000 requests per month.
Other
CurlShot
Screenshot API that renders a URL, HTML, or Markdown to PNG, JPEG, WebP, PDF, or scrolling video with one GET request. Supports full-page and element capture, device presets, dark mode, and ad/cookie-banner blocking; also offers a hosted MCP server. Free plan: 100 screenshots/month, 10 requests/minute, no credit card.
API Tools
Currencyapi
Free currency conversion and exchange rate data API. Free 300 requests per month, 10 requests per minute for private use.
API Tools
CurrencyFreaks
Provides current and historical currency exchange rates. Free DEVELOPER plan available with 1000 requests/month.
API Tools
currencylayer.com
Reliable Exchange Rates and Currency Conversion for your Business, 1,000 API requests/month free
Business
CurrencyScoop
Realtime currency data API for fintech apps. The free plan includes 5,000 calls per month.
Other
Cushion
Async-friendly alternative to Slack. built for small, distributed teams who are productive. Free tier with 30 posts, 5 members and unlimited guests.
Productivity
CustomJS
HTML to PDF or PDF to PNG/Text & PDF merging/extraction/merging APIs. Free tier has 600 calls a month.
Other
CyberChef
A simple, intuitive web app for analyzing and decoding/encoding data without dealing with complex tools or programming languages. Like a Swiss army knife of cryptography & encryption. All features are free to use, with no limit. Open source if you wish to self-host.
Security
Cypress Recorder by Preflight
Create AI-powered Cypress Tests/POM models on your browser. It's open-source, except for the AI part. It's free for five monthly test creations with Self-healing scripts, Email, and Visual testing.
Developer Tools
cypress.io
Fast, easy and reliable testing for anything that runs in a browser. Cypress Test Runner is always free and open-source with no restrictions and limitations. Cypress Dashboard is free for open-source projects for up to 5 users.
Developer Tools
Daestro
Run compute jobs across Cloud Providers & On-Prem. The free tier includes up to 10 concurrent job runs, 2 compute spawns, self-hosted compute, 1 cloud provider, 1 container registry and 1 cron job.
Cloud Computing
dafont
The fonts presented on this website are their authors' property and are either freeware, shareware, demo versions, or public domain.
Design
DaisyUI
- Free. "Use Tailwind CSS but write fewer class names" offers components like buttons.
Design
dAppling Network
Decentralized web hosting platform for Web3 frontends focusing on increasing uptime and security and providing an additional access point for users.
Hosting
dareboost
5 free analysis reports for web performance, accessibility, and security each month
Developer Tools
darklang.com
Hosted language combined with editor and infrastructure. Accessible during the beta, a generous free tier is planned after beta.
Backend
DAS
Styra DAS Free, Full lifecycle policy management to create, deploy and manage Open Policy Agent(OPA) authorization
Security
Data Dead Drop
Simple, free file sharing. Data self-destroys after access. Upload and download data via the browser or your favorite command line client.
Other
Data Fetcher
Connect Airtable to any application or API with no code. Postman-like interface for running API requests in Airtable. Pre-built integrations with dozens of apps. The free plan includes 100 runs per month.
Other
Data Miner
A browser extension (Google Chrome, MS Edge) for data extraction from web pages CSV or Excel. The free plan gives you 500 pages/month.
Other
Databox
Business Insights & Analytics by combining other analytics & BI platforms. Free Plan offers 3 users, dashboards & data sources. 11M historical data records.
Analytics
Dataimporter.io
Tool for connecting, cleaning, and importing data into Salesforce. Free Plan includes up to 20,000 records per month.
Other
Datalore
Python notebooks by Jetbrains. Includes 10 GB of storage and 120 hours of runtime each month.
Other
Datapane
API for building interactive reports in Python and deploying Python scripts and Jupyter Notebooks as self-service tools.
Other
datelist.io
Online booking / appointment scheduling system. Free up to 5 bookings per month, includes 1 calendar
Other
DatoCMS
Offers free tier for small projects. DatoCMS is a GraphQL-based CMS. On the lower tier, you have 100k/month calls.
CMS
Datree
Open Source CLI tool to prevent Kubernetes misconfigurations by ensuring that manifests and Helm charts follow best practices as well as your organization’s policies
Security
DB Designer
Cloud-based Database schema design and modeling tool with a free starter plan of 2 Database models and ten tables per model.
Other
DB-IP
Free IP geolocation API with 1k request per IP per day.lite database under the CC-BY 4.0 License is free too.
Other
deadmanssnitch.com
Monitoring for cron jobs. 1 free snitch (monitor), more if you refer others to sign up
Analytics
deco.cx
Edge-native frontend platform with a visual CMS auto-generated from TypeScript code. Built-in A/B testing, content segmentation, and real-time analytics. Perfect for content-heavy and Enterprise e-commerce websites. Free up to 5k pageviews/month or open-source/personal projects.
Cloud
deed.page
Static site hosting built for AI agents and scripts: one HTTP PUT or the MCP server publishes HTML files or a folder to a permanent https://<slug>.deed.page URL. The free plan needs no signup and includes 25 sites, 25 MB per site and 4 MB per request.
Hosting
DeepAR
Augmented reality face filters for any platform with one SDK. The free plan provides up to 10 monthly active users (MAU) and tracks up to 4 faces
Other
deepcode.ai
DeepCode finds bugs, security vulnerabilities, performance and API issues based on AI. DeepCode's speed of analysis allows us to analyze your code in real time and deliver results when you hit the save button in your IDE. Supported languages are Java, C/C++, JavaScript, Python, and TypeScript. Integrations with GitHub, BitBucket, and GitLab. Free for open source and private repos and up to 30 developers.
Developer Tools
DeepLearning.AI Short Courses
Free short courses from industry-leading experts to get hands-on experience with the latest generative AI tools and techniques in an hour or less.
Education
Deepnote
A new data science notebook. Jupyter is compatible with real-time collaboration and running in the cloud. The free tier includes unlimited personal projects, unlimited basic machines with 5GB RAM and 2vCPU, and teams with up to 3 editors.
Other
deepscan.io
Advanced static analysis for automatically finding runtime errors in JavaScript code, free for Open Source
Developer Tools
DeepSource
DeepSource continuously analyzes source code changes, finding and fixing issues categorized under security, performance, anti-patterns, bug-risks, documentation, and style. Native integration with GitHub, GitLab, and Bitbucket.
Developer Tools
degoo.com
AI based cloud storage with free up to 20 GB, three devices, 5 GB referral bonus (90 days account inactivity).
Other
Deno Deploy
Distributed system that runs JavaScript, TypeScript, and WebAssembly at the edge worldwide. The free tier includes 100,000 requests per day and 100 GiB data transfers per month.
Cloud
dependencyci.com
Continuous dependency checking for GitHub repositories, free for open source
Development
DeployApps
A serverless function provider offers 1 million function calls, 100GB of bandwidth, and 10 cron jobs per month for free, exclusively for non-commercial or academic use.
Cloud
deployment.io
Deployment.io helps developers automate deployments on AWS. On our free tier, a developer (single user) can deploy unlimited static sites, web services, and environments. We provide 20 job executions free per month with previews and auto-deploys included in the free tier.
Cloud
Descope
Highly customizable AuthN flows, has both a no-code and API/SDK approach, Free 7,500 active users/month, 50 tenants (up to 5 SAML/SSO tenants).
Security
deSEC
Free DNS hosting with API support, designed with security in mind. Runs on open-source software and is supported by.
Infrastructure
developers.arcgis.com
APIs and SDKs for maps, geospatial data storage, analysis, geocoding, routing, and more across web, desktop, and mobile. Two million free base map tiles, 20,000 non-stored geocodes, 20,000 simple routes, 5,000 drive time calculations, and 5GB free tile+data storage per month.
Analytics
developers.google.com
The Google Hosted Libraries is a content distribution network for the most popular, Open Source JavaScript libraries
Web Development
DevNet Academy
Free, self-paced training for the Cisco DevNet Expert / CCIE Automation certification. Covers Python Click and Flask-RESTx.
Education
devport.co
Turn GitHub projects, apps and websites into a personal developer portfolio
Web Development
DevToolLab
Online developer tools offering free access to all basic tools, with the ability to auto save one entry per tool, standard processing speed, and community support.
Productivity
Dgraph Cloud
Managed native Graph DBMS with a GraphQL API. Limited to 1 MB data transfer per day.
Database
DhiWise
Seamlessly turn Figma designs into dynamic Flutter & React applications with DhiWise's innovative code generation technology, optimizing your workflow and helping you craft exceptional mobile and web experiences faster than ever before.
AI & Machine Learning
diagrams.net
Online diagrams stored locally in Google Drive, OneDrive, or Dropbox. Free for all features and storage levels
Productivity
Diawi
Deploy iOS & Android apps directly to devices. Free plan: app uploads, password-protected links, 1-day expiration, ten installations.
Developer Tools
DiffJSON
An online tool for comparing differences between two JSON data structures, helping you quickly locate the differences in JSON data.
Other
DiffText
Instantly find the differences between two blocks of code. Completely free to use.
Developer Tools
DigitalOcean
Build and deploy three static sites for free on the App Platform Starter tier.
Hosting
Directus
Headless CMS. A completely free and open-source platform for managing assets and database content on-prem or in the Cloud. There are no limitations or paywalls.
CMS
Discord
Chat with public/private rooms. Markdown text, voice, video, and screen sharing capabilities. Free for unlimited users.
Productivity
Disease.sh
A free API providing accurate data for building the Covid-19 related useful Apps.
Other
Disqus
Disqus is a networked community platform used by hundreds of thousands of sites all over the web.
Communication
DJ Checkup
Scan your Django site for security flaws with this free, automated checkup tool. Forked from the Pony Checkup site.
Security
Django-tutorial.dev
Free online guides for learning Django as their first framework & gives free dofollow backlink to articles written by users.
Education
dkimvalidator.com
Test if the email's DNS/SPF/DKIM/DMARC settings are correct, free service by roundsphere.com
Communication
DNSExit
Up to 2 Email addresses under your domain for free with 100MB of storage space. IMAP, POP3, SMTP, SPF/DKIM support.
Communication
DNSHE
Free subdomain registration across multiple domain suffixes, with custom nameserver support.
Domains & DNS
dnsspy.io
Monitor your DNS and get alerts for changes, RFC-violating DNS configs, ... Free for 1 domain, open source maintainers may apply for a free premium account.
Analytics
DocBeacon
Secure document sharing with document tracking and engagement Analytics. Free plan supports up to 20 PDF documents (10 MB max), 10 contacts, and 2 shares per document with basic analytics for views downloads, time and engagement.
Other
Docker Cloud
Manages the deployments of Docker containers to your (separate) cloud environment with one free repository
Development
Docker Hub
One free private repository and unlimited public repositories to build and store Docker images
Development
DocPenny
HTML to PDF document generation with templates, webhook delivery, and credit-based pricing. Free plan with 50 monthly credits, no credit card required.
Other
Doczilla
SaaS API empowering the generation of screenshots or PDFs directly from HTML/CSS/JS code. The free plan allows 250 documents month.
Other
Domain Forward
A straightforward tool to forward any URL or Domain. Free up to 5 domains and 200k requests per month.
Other
domcloud.co
Linux hosting service that provides CI/CD with GitHub, SSH, and MariaDB/Postgres database. The free version has 1 GB storage and 1 GB network/month limit and is limited to a free domain.
Cloud Computing
dominodatalab.com
Data science with support for Python, R, Spark, Hadoop, Matlab and others
Development
doodle.com
The scheduling tool you'll actually use. Find a date for a meeting two times faster
Productivity
Doppio
Managed API to generate and privately store PDFs and Screenshots using top rendering technology. The free plan allows 400 PDFs and Screenshots per month.
Other
Doppler
Universal Secrets Manager for application secrets and config, with support for syncing to various cloud providers. Free for five users with basic access controls.
Security
Doqlo
Bulk fill and mail merge PDF forms from CSV using the web app or Public API. The free plan includes 100 output PDFs/month.
Other
Doradrop
Doradrop is a file-sharing platform with unlimited storage and zero ads. Share files instantly through secure - no login needed.
Storage
Dotenv
Sync your .env files, quickly & securely. Stop sharing your .env files over insecure channels like Slack and email, and never lose an important .env file again. Free for up to 3 teammates.
Security
draw.io
Online diagrams stored locally, in Google Drive, OneDrive or Dropbox. Free for all features and storage levels
Productivity
dreamfactory.com
Open source REST API backend for mobile, web, and IoT applications. Hook up any SQL/NoSQL database, file storage system, or external service and it instantly creates a comprehensive REST API platform with live documentation, user management,...
Development
dribbble
[Design showcase] Unique design inspiration, generally not from real applications.
Design
Drive To Web
Host directly to the web from Google Drive & OneDrive. Static sites only. Free forever. One site per Google/Microsoft account.
Hosting
DronaHQ
DronaHQ - a low code platform that helps engineering teams and product managers to build internal tools, custom user journeys, digital experiences, automation, custom admin panels, operational apps 10X faster.
Developer Tools
drone
Drone Cloud enables developers to run Continuous Delivery pipelines across multiple architectures - including x86 and Arm (both 32-bit and 64-bit) - all in one place
CI/CD
Dropshare
Zero-knowledge file sharing. End-to-end encrypted file sharing with AES-256-GCM encryption, client-side processing, and zero server-side data access. Free uploads for files up to 1GB with no data collection.
Storage
drumbeats.io
Cron, heartbeat, and uptime monitoring with incident management and status pages. Free for up to 50 monitors with 1-min interval and unlimited team seats.
Monitoring
Dubble
Free Step-by-Step Guide creator. Take screenshots, document processes and colloborate with your team. Also supports async screen recording.
Productivity
duckdns.org
Free DDNS with up to 5 domains on the free tier. With configuration guides for various setups.
Infrastructure
Duckly
Talk and collaborate in real time with your team. Pair programming with IDE, terminal sharing, voice, video, and screen sharing. Free for small teams.
Productivity
duo.com
Two-factor authentication (2FA) for website or app. Free 10 users, all authentication methods, unlimited, integrations, hardware tokens
Security
Duply.co
Create dynamic images from API & URL, design template once and reuse it. The free tier offers 20 free credits.
Other
DynamicDocs
Generate PDF documents with JSON to PDF API based on LaTeX templates. The free plan allows 50 API calls per month and access to a library of templates.
Other
Dynv6.com
Free DDNS service with and management of a lot of dns record types (like CNAME, MX, SPF, SRV, TXT and others).
Infrastructure
Dyte
The most developer-friendly live video & audio SDK, featuring collaborative plugins to enhance productivity and engagement. The free tier includes monthly 10,000 minutes of live video/audio usage.
Productivity
Earnings Feed
Real-time SEC filings, insider trades, and institutional holdings API. Free tier includes 15 requests per minute.
Other
easyretro.io
Simple and intuitive sprint retrospective tool. The free plan has three public boards and one survey per board per month.
Productivity
easyvectors.com
EasyVectors.com is a free SVG vector art stock. Download the best vector graphics absolutely for free.
Design
Eclipse Che
Web-based and Kubernetes-Native IDE for Developer Teams with multi-language support. Open Source and community-driven. An online instance hosted by Red Hat is available at.
Developer Tools
economize.cloud
Economize helps demystify cloud infrastructure costs by organizing cloud resources to optimize and report the same. Free for up to $5,000 spent on Google Cloud Platform every month.
Monitoring
edX
Offers access to over 4,000 free online courses from 250 leading institutions, including Harvard and MIT, specializing in computer science, engineering, and data science.
Education
Efemarai
Testing and debugging platform for ML models and data. Visualize any computational graph. Free local use.
Other
elastic.co
Instant performance insights for JS developers. Free with 24-hour data retention
Monitoring
element.io
A decentralized and open-source communication tool built on Matrix. Group chats, direct messaging, encrypted file transfers, voice and video chats, and easy integration with other services.
Productivity
elmah.io
Error logging and uptime monitoring for web developers. Free Small Business subscription for open-source projects.
Monitoring
EmailGuard
Block disposable emails, catch typos, and validate MX records via a simple API. 100 free requests/month.
Email Services
EmailJS
This is not an entire email server; this is just an email client that you can use to send emails right from the client without exposing your credentials, the free tier has 200 monthly requests, 2 email templates, Requests up to 50Kb, Limited contacts history.
Email Services
EmailQo Email Infrastructure Grader
Free email infrastructure grader that checks SPF, DKIM, DMARC and mail server configuration. Scores any domain out of 100. No signup required.
Email Services
embed.ly
Provides APIs for embedding media in a webpage, responsive image scaling, extracting elements from a webpage. Free for up to 5,000 URLs/month at 15 requests/second
Content Creation
Embrace
Mobile app monitoring. Free for small teams with up to 1 million user sessions per year.
Monitoring
Emitlo
free 12,000 emails/month, Email API and SMTP, SPF/DKIM/DMARC support, No Credit Cards are required.
Email Services
EMQX Serverless
Scalable and secure serverless MQTT broker you can get in seconds. 1M session minutes/month free forever (no credit card required).
Communication
encore.dev
Backend framework using static analysis to provide automatic infrastructure, boilerplate-free code, and more. Includes free cloud hosting for hobby projects.
Cloud
Engage
All-in-one Customer Engagement and Automation Tool (email, push, SMS, product tours, banners and more) for SaaS. Free for up to 1,000 active users per month.
Communication
engagespot.co
Multi-channel notification infrastructure for developers with a prebuilt in-app inbox and no-code template editor. Free plan includes 10,000 messages/mo.
Communication
Ente
Ente is an end-to-end encrypted cloud for photos, videos and 2FA secrets. Can also be self-hosted along with a generous forever free-tier of 10GB. For free tier users, only single replica of data is kept.
Storage
ERD Lab
Free cloud-based entity relationship diagram (ERD) tool made for developers. Free trial includes 2 projecs with 10 tables each.
Other
Escape GraphQL Quickscan
One-click security scan of your GraphQL endpoints. Free, no login required.
Security
Esper
MDM and MAM for Android Devices with DevOps. One hundred devices free with one user license and 25 MB Application Storage.
Productivity
EtherealMail
Ethereal is a fake SMTP service, mainly aimed at Nodemailer and EmailEngine users (but not limited to). It's an entirely free anti-transactional email service where messages never get delivered.
Communication
ETLR
Define, version, and deploy automation scripts using YAML. A developer-first alternative to drag-and-drop tools. Can be used for scheduled tasks, AI agents, and infrastructure monitoring. Free tier includes 100 credits/month.
Backend Services
evernote.com
Tool for organizing information. Share your notes and work together with others
Productivity
eversql.com
EverSQL - The #1 platform for database optimization. Gain critical insights into your database and SQL queries automatically.
Developer Tools
everystep-automation.com
Records and replays all steps made in a web browser and creates scripts,... free with fewer options
Development
Everything Fonts
Offers multiple tools; @font-face, Units Converter, Font Hinter and Font Submitter.
Design
Excalidraw
- A free online drawing document web page with free save to local and export support.
Design
exceptionless
Real-time error, feature, log reporting, and more. Free for 3k events per month/1 user. Open source and easy to self-host for unlimited use.
Monitoring
Exchange Rate API
Real-time currency rates for 160+ currencies with 60-second updates and official SDKs. Free tier includes 300 requests/month.
Payments
exchangerate-api.com
An easy-to-use currency conversion JSON API. The free tier updates once per day with a limit of 1,500 requests/month.
API Tools
Exercism
Free, open-source programming education in over 75 programming languages, with human mentoring. A nonprofit organisation.
Education
Exif Editor
View, Edit, Scrub, Analyze image/photo metadata in-browser instantly - including GPS location and metadata.
Other
Export SDK
PDF generator API with drag-and-drop template editor that provides an SDK and no-code integrations. The free plan has 250 monthly pages, unlimited users, and three templates.
Other
Expose
Expose local sites via secure tunnels. The free plan includes an EU Server, Random subdomains, and Single users.
Infrastructure
eyeson API
A video communication API service based on WebRTC (SFU, MCU) to build video platforms. Allows real-time data Injection, Video Layouts, Recordings, a fully featured hosted web UI (quickstart) or packages for custom UIs. Has a with 1000 meeting minutes a month.
Communication
FabForm
Form backend platform for intelligent developers. The free plan allows 250 form submissions per month. Friendly modern GUI. Integrates with Google Sheets, Airtable, Slack, Email, and others.
Productivity
fakejson.com
FakeJSON helps you quickly generate fake data using its API. Make an API request describing what you want and how you want it. The API returns it all in JSON. Speed up the go-to-market process for ideas and fake it till you make it.
Developer Tools
FakeMailGenerator.com
A German Temporary / Disposable Mail generator. Support 10 domain, while giving you the freedom of creating unlimited addresses. (include ads) but other than that, there is no pricing included in the service, it is entirely free.
Communication
fastly.com
Free CDN, all features until USD 50/month is reached, enough for most, then pay or suspended
Web Development
Feathery
Powerful, developer-friendly form builder. Build signup & login, user onboarding, payment flows, complex financial applications, and more. The free plan allows up to 250 submissions/month and five active forms.
Productivity
feedback.fish
Free plan allows collecting 25 total feedback submissions. Easy to integrate with React and Vue components provided.
Productivity
Fenix Web Server
A developer desktop app for hosting sites locally and sharing them publically (in real-time). Work however you like, using its beautiful user interface, API, and/or CLI.
Hosting
Fibo
A free online realtime scrum poker tool for agile teams that lets unlimited members estimate story points for faster planning.
Productivity
fieldbook.com
Fieldbook lets anyone create a simple tracking database, as easily as a spreadsheet. Automatic API. Unlimited free sheets, share with unlimited users
Database
figma.com
Online, collaborative design tool for teams; free tier includes unlimited files and viewers with a max of 2 editors and three projects.
Design
file.io
2 GB storage of files. A file is auto-deleted after one download. REST API to interact with the storage. Rate limit one request/minute.
Storage
filebase.com
S3 Compatible Object Storage Powered by Blockchain. 5 GB free storage for an unlimited duration.
Cloud
filehero.io
Make it easy to access your company's file storage from a corporate download page. Free for 5 concurrent downloads
Productivity
FileShot.io
Zero-knowledge encrypted file sharing. AES-256-GCM browser-side encryption ensures files are encrypted in-browser before upload. No account required for sender or recipient. Self-hostable (MIT open-source). Free tier includes unlimited uploads with no file size restrictions.
Other
filess.io
filess.io is a platform where you can create two databases with up to 10 MB per database of the following DBMS for free: MySQL, MariaDB, MongoDB, and PostgreSQL.
Database
filestack.com
File picker, transform and deliver, free for 250 files, 500 transformations and 3 GB bandwidth
Content Creation
Findr
Universal search that lets you search all your apps, at once. Search assistant that lets you answer questions using your information. Free plan offers unlimited unified search and 5 co daily co pilot queries.
AI & Machine Learning
firebase.com
Build real-time apps, free plan has 100 max. connections, 10 GB data transfer, 1 GB data storage, 1 GB hosting storage and 10 GB hosting transfer
Web Development
Firecrawl
API that crawls websites and converts them into clean, LLM-ready markdown or structured data, handling JavaScript rendering, proxies, and rate limits. The free plan includes 1,000 credits per month with no credit card required.
Other
fivenines.io
Linux server monitoring with real‑time dashboards and alerting - free forever for up to 5 monitored servers at 60-seconds interval. No credit card required.
Monitoring
Fizzy
Kanban-based platform for project management and issue tracking. Create public boards, set up webhooks, use card stamping, and track unlimited users - free for up to 1000 items.
Collaboration
Flagsmith
Release features with confidence; manage feature flags across web, mobile, and server-side applications. Use our hosted API, deploy to your own private cloud, or run on-premise.
Developer Tools
FlareWarden
Uptime, content, dependency, and SSL monitoring with multi-region verification and status pages. Free plan includes 15 monitors, 5-minute checks, and 90 days of history.
Monitoring
flat.social
Interactive customizable spaces for team meetings & happy hours socials. Unlimited meetings, free up to 8 concurrent users.
Productivity
Fleep.io
Fleep an alternative to Slack. It has a free plan for small teams with full message history, unlimited 1:1 conversations, 1 group conversation, and 1 GB file storage.
Productivity
flightcontrol.dev
Deploy web services, databases, and more on your own AWS account with a Git push style workflow. Free tier for users with 1 developer on personal GitHub repos. AWS costs are billed through AWS, but you can use credits and the AWS free tier.
Cloud
Float UI
free web development tool for quickly creating modern, responsive websites with sleek design, even for non-designers.
Design
flock.com
A faster way for your team to communicate. Free Unlimited Messages, Channels, Users, Apps & Integrations
Productivity
Flows
- A fully customizable product adoption platform for building onboarding and user engagement experiences. Free for up to 250 monthly tracked users.
Design
FluidForms
Form builder and backend with AI-driven logic. Free plan includes 100 responses per month, unlimited forms (including AI-created forms), webhooks, and embedding.
Forms
FlutLab
FlutLab is a modern Flutter online IDE and the best place to create, debug, and build cross-platform projects. Build iOS (Without a Mac) and Android apps with Flutter.
Developer Tools
Flutter Flow
Build your Flutter App UI without writing a single line of code. Also has a Firebase integration. The free plan includes full access to UI Builder and Free templates.
Backend
Font Squirrel
Freeware fonts licensed for commercial work. Hand-selected these typefaces and presented them in an easy-to-use format.
Design
fonts.xz.style
free and open source service for delivering font families to websites using CSS.
Design
Fontsensei
Opensourced Google fonts tagged by users. With CJK (Chinese,Japanese, Korean) font tags.
Design
Fontshare
is a free fonts service. It’s a growing collection of professional-grade fonts, 100% free for personal and commercial use.
Design
FontsKey
Provides free and commercial paid fonts for personal use and can enter text for quick filtering.
Design
ForgeCode
AI-enabled pair programmer for Claude, GPT4 Series, Grok, Deepseek, Gemini and all frontier models. Works natively with your CLI and integrates seamlessly with any IDE. Free tier includes basic AI model access with local processing.
Developer Tools
Form Plume
Form Plume is a form backend for HTML and JavaScript forms. One endpoint gets you spam filtering, email notifications, file uploads, webhooks, and a clean inbox. Free for 500 submissions/mo.
Forms
Form-Data
No-code forms backend. Spam filter, email notification and auto-respond, webhooks, zapier, redirects, AJAX or POST, and more. The free plan offers unlimited forms, 20 submissions/month, and an additional 2000 submissions with Form-Data badge.
Productivity
Form.taxi
Endpoint for HTML forms submissions. With notifications, spam blockers, and GDPR-compliant data processing. Free plan for basic usage.
Productivity
FormatJSONOnline.com
A free, browser-based tool to format, validate,compare and minify JSON data instantly.
Other
Formester.com
Share and embed unique-looking forms on your website-no limits on the number of forms created or features restricted by the plan. Get up to 100 submissions every month for free.
Productivity
formingo.co
Easy HTML forms for static websites. You can start for free without registering an account. The free plan allows 500 monthly submissions and a customizable reply-to email address.
Productivity
Forminit
Headless form backend for developers. The free plan allows 100 form submissions per month including file uploads, server-side field validation, email notifications, spam protection and Zapier.
Forms
FormKeep.com
Unlimited forms with 50 monthly submissions, spam protection, email notification, and a drag-and-drop designer that can export HTML. Additional features include custom field rules, teams, and integrations to Google Sheets, Slack, ActiveCampaign, and Zapier.
Productivity
formlets.com
Online forms, unlimited single page forms/month, 100 submissions/month, email notifications
Productivity
Formlick.com
Typeform alternative with lifetime deal. Users can create 1 free form and receive unlimited submissions. In premium, users can create unlimited forms and unlimited submissions.
Productivity
FormNX
Create unlimited forms get unlimited submissions free of cost. Use professionally created 1000+ form templates or create forms from scratch. Get features like email notifications, form logic, collect payments, file upload, custom thank you page, and many more.
Forms
forms.app
Create online forms with powerful features like conditional logic, automatic score calculator, and AI. Collect up to 100 responses with a free plan, embed your forms on a website, or use them with a link.
Productivity
formspark.io
Form to Email service, free plan allows unlimited forms, 250 submissions per month, support by Customer assistance team.
Productivity
Formspree.io
Send email using an HTTP POST request. The free tier limits to 50 submissions per form per month.
Productivity
Formsubmit.co
Easy form endpoints for your HTML forms. Free Forever. No registration is required.
Productivity
Formware.io
Create fully-responsive and captivating forms in seconds, without knowing how to code, and collect unlimited responses for free!
Forms
forwardemail.net
Free email forwarding for custom domains. Create and forward an unlimited amount of email addresses with your domain name
Communication
FOSSA
Scalable, end-to-end management for third-party code, license compliance and vulnerabilities.
Other
Foursquare
Location discovery, venue search, and context-aware content from Places API and Pilgrim SDK.
Analytics
foxpass.com
Hosted LDAP and RADIUS. Easy per-user logins to servers, VPNs and wireless networks. Free for 10 users
Security
framagit.org
Framagit is the software forge of Framasoft based on the Gitlab software includes CI, Static Pages, Project pages and Issue tracking.
Developer Tools
framer.com
Framer helps you iterate and animate interface ideas for your next app, website, or product-starting with powerful layouts. For anyone validating Framer as a professional prototyping tool: unlimited viewers, up to 2 editors, and up to 3 projects.
Design
FraudLabs Pro
Screen an order transaction for credit card payment fraud. This REST API will detect all possible fraud traits based on the input parameters of an order. The Free Micro plan has 500 transactions per month.
Other
Free Code Tools
Effective code tools which are 100% free. Markdown editor, Code minifier/beautifier, QR code generator, Open Graph Generator, Twitter card Generator, and more.
Other
Free Hosting
Free Hosting With PHP 5, Perl, CGI, MySQL, FTP, File Manager, POP E-Mail, free sub-domains, free domain hosting, DNS Zone Editor, Web Site Statistics, FREE Online Support and many more features not offered by other free hosts.
Hosting
Free Professional Resume Templates & Editor
Free platform with lots of Resume templates of Experienced Professionals, ready to clone and edit fully and download, ATS optimized.
Education
freeboard.io
Free for public projects. Dashboards for your Internet of Things (IoT) projects
Analytics
FreeCodeCamp
Open-source platform offering free courses and certifications in Data Analysis, Information Security, Web Development, and more.
Education
freedcamp.com
tasks, discussions, milestones, time tracking, calendar, files and password manager. Free plan with unlimited projects, users, and file storage.
Productivity
FreeFlarum
Community-powered free Flarum hosting for up to 250 users (donate to remove the watermark from the footer).
Hosting
Freehostia
FreeHostia offers free hosting services incl. an industry-best Control Panel & a 1-click installation of 50+ free apps. Instant setup. No forced ads.
Hosting
FreeIPAPI
Free, Fast and Reliable IP Geolocation API for commercial and non-commercial users available in JSON
Other
freetools.site
Free online tools. Convert or edit documents, images, audio, video, and more.
Storage
FrontAid
Headless CMS that stores JSON content directly in your Git repository. No restrictions.
CMS
Full Stack Open
Free university-level course on modern web development with React, Node.js, GraphQL, TypeScript, and more. Fully online and self-paced.
Education
fullcontact.com
Help your users know more about their contacts by adding social profile into your app. 500 free Person API matches/month
Productivity
FullStory.com
1,000 sessions/month with one month data retention and three user seats. More information.
Analytics
Future AGI
Open-source platform to evaluate, observe, and improve LLM and AI agent apps, with tracing, evals, simulations, and guardrails. Free tier includes 50GB storage, 2K eval credits, 100K AI-gateway requests/month, 1M tokens of text agent simulation and 60 min of voice simulation, plus unlimited projects/seats and BYOK LLM-as-judge at $0 platform cost. #opensource
AI & Machine Learning
FxRatesAPI
Provides real-time and historical exchange rates. The free tier requires attribution.
API Tools
Gamefresco.com
Discover, collect, and share free game assets from game artists everywhere.
Developer Tools
Gather
A better way to meet online. Centered around fully customizable spaces, Gather makes spending time with your communities just as easy as real life. Free for up to 10 concurrent users.
Productivity
GatsbyjsCMS
Gatsby is the fast and flexible framework that makes building websites with any CMS, API, or database fun again. Build and deploy headless websites that drive more traffic, convert better, and earn more revenue!
CMS
gearhost.com
Platform for .NET and PHP apps. 256 MB of RAM for free on a shared server with limited resources
Web Development
Geekflare API
Geekflare API lets you scrape websites into Markdown, take screenshots, perform TLS scans and DNS lookups, test load times, and more. The free plan offers 500 API credits per month (e.g., 500 DNS lookups, 250 web scrapes, or 100 screenshots). See credit mapping.
Other
Gemfury
Private and public artifact repos for Maven, PyPi, NPM, Go Module, Nuget, APT, and RPM repositories. Free for public projects.
Developer Tools
geoapify.com
Vector and raster map tiles, geocoding, places, routing, isolines APIs. Three thousand free requests/day.
Analytics
geocoder.opencagedata.com
Geocoding API that aggregates OpenStreetMap and other open geo sources. 2,500 free queries/day
Analytics
GeoDataSource
Location search service looks up city names using latitude and longitude coordinates. Free API queries up to 500 times per month.
Other
Geokeo api
Geocoding API with language correction and more. Worldwide coverage. 2,500 free daily queries
Analytics
Geolocated.io
IP Geolocation API with multi-continent servers, offering a free plan with 2,000 requests per day.
Other
get.localhost.direct
A better `*.localhost.direct` Wildcard public CA signed SSL cert for localhost development with sub-domain support
Other
getform.io
Form backend platform for designers and developers, 1 form, 50 submissions, Single file upload, 100MB file storage.
Productivity
getpantry.cloud
A simple JSON data storage API perfect for personal projects, hackathons, and mobile apps!
Storage
getstream.io
Build scalable news feeds and activity streams in a few hours instead of weeks, free for 3 million feed updates/month
Database
GetUpdraft
Distribute mobile apps for testing. The free plan includes one app project, three app versions, 500 MB storage, and 100 app installations per month.
Developer Tools
GetVM
Instant free Linux and IDEs chrome sidebar. The free tier includes 5 VMs per day.
Developer Tools
GForge
Project Management and issue Tracking toolset for complex projects with self-premises and SaaS options. SaaS free plan offers the first five users free & free for Open Source Projects.
Productivity
ghostinspector.com
Free website and web application monitoring. Single user, 100 test runs/month
Analytics
gigalixir.com
Gigalixir provides one free instance that never sleeps and a free-tier PostgreSQL database limited to 2 connections, 10, 000 rows and no backups for Elixir/Phoenix apps.
Cloud
GitBook
Platform for capturing and documenting technical knowledge - from product docs to internal knowledge bases and APIs. Free plan for individual developers.
Productivity
GitDailies
Daily reports of your team's Commit and Pull Request activity on GitHub. Includes Push visualizer, peer recognition system, and custom alert builder. The free tier has unlimited users, three repos, and 3 alert configs.
Productivity
GitGuardian
Keep secrets out of your source code with automated secrets detection and remediation. Scan your git repos for 350+ types of secrets and sensitive files – Free for individuals and teams of 25 developers or less.
Security
GitGud
Unlimited private and public repositories. Free forever. Powered by GitLab & Sapphire. CI/CD not provided.
Developer Tools
gitter.im
Chat, for GitHub. Unlimited public and private rooms, free for teams up to 25
Productivity
Gizmo Analytics
Simple analytics for people managing lots of sites. Install manually or let Claude/Cursor do it for you. Free for up to 10k events/month.
Other
gleek.io
Free description-to-diagrams tool for developers. Create informal UML class, object, or entity-relationship diagrams using your keyword.
Productivity
gliffy.com
Online diagrams: flowchart, UML, wireframe,... Also plugins for Jira and Confluence. 5 diagrams and 2 MB free
Productivity
GlitchTip
Simple, open-source error tracking. Compatible with open-source Sentry SDKs. 1000 events per month for free, or can self-host with no limits
Monitoring
Glitterly
Programmatically generate dynamic images from base templates. Restful API and nocode integrations. The free tier comes with 50 images/month and five templates.
Other
Glob tester
A website that allows you to design and test glob patterns. It also provides resources to learn glob patterns.
Other
Glyphs
- Free, The Mightiest Icons on the Web, Fully editable & truly open source design system.
Design
GoatCounter
GoatCounter is an open-source web analytics platform available as a hosted service (free for non-commercial use) or self-hosted app. It aims to offer easy-to-use and meaningful privacy-friendly web analytics as an alternative to Google Analytics or Matomo. The free tier is for non-commercial use and includes unlimited sites, six months of data retention, and 100k pageviews/month.
Analytics
GoFile.io
Free file sharing and storage platform can be used via web-based UI & also API. unlimited file size, bandwidth, download count, etc. But it will be deleted when a file becomes inactive (no download for more than ten days).
Storage
gokanban.io
Syntax-based, no registration Kanban Board for fast use. Free with no limitations.
Productivity
Google Fonts
Many free fonts are easy and quick to install on a website via a download or a link to Google's CDN.
Design
Google Meet
Use Google Meet for your business's online video meeting needs. Meet provides secure, easy-to-join online meetings.
Productivity
Google STUN
Google public STUN server for WebRTC - Free STUN server at stun.l.google.com:19302
Web Development
Grafana Cloud
Grafana Cloud is a composable observability platform that integrates metrics and logs with Grafana. Free: 3 users, ten dashboards, 100 alerts, metrics storage in Prometheus and Graphite (10,000 series, 14 days retention), logs storage in Loki
Monitoring
Grapedrop
Responsive, powerful, SEO-optimized web page builder based on GrapesJS Framework. Free for the first five pages, unlimited custom domains, all features, and simple usage.
Design
GraphComment
GraphComment is a comments platform that helps you build an active community from the website’s audience.
Communication
graphhopper.com
A free developer package is offered for Routing, Route Optimization, Distance Matrix, Geocoding, and Map Matching.
Analytics
GraphQL Inspector
GraphQL Inspector outputs a list of changes between two GraphQL schemas. Every difference is precisely explained and marked as breaking, non-breaking, or dangerous.
Productivity
Gremlin
Gremlin's Chaos Engineering tools allow you to safely and securely inject failure into your systems to find weaknesses before they cause customer-facing issues. Gremlin Free provides access to Shutdown and CPU attacks on up to 5 hosts or containers.
Developer Tools
gridlastic.com
Selenium Grid testing with free plan up to 4 simultaneous selenium nodes/10 grid starts/4,000 test minutes/month
Development
GrowthBook
Open source feature flag and A/B testing provider with built-in Bayesian statistical analysis engine. Free for up to 3 users, unlimited feature flags and experiments.
Developer Tools
gumlet.com
Image and video hosting, processing and streaming via CDN. Provides generous free tier of 250 GB / month for videos and 30 GB / month for images.
Storage
Hackmd.io
Real time collaboration & writing tool for markdown format docs/files. Like Google Docs but for markdown files. Free unlimited number of "notes", but the number of collaborators (invitee) for private notes & template.
Productivity
haikei.app
Haikei is a web app to generate unique SVG shapes, backgrounds, and patterns – ready to use with your design tools and workflow.
Design
Hamachi
LogMeIn Hamachi is a hosted VPN service that lets you securely extend LAN-like networks to distributed teams with a free plan that allows unlimited networks with up to 5 people
Infrastructure
hangouts.google.com
One place for all your conversations, for free, need a Google account
Productivity
HasMySecretLeaked
Search across 20 million exposed secrets in public GitHub repositories, gists, issues,and comments for Free
Security
hasura.io
Hasura extends your existing databases wherever it is hosted and provides an instant GraphQL API that can be securely accessed for web, mobile, and data integration workloads. Free for 1GB/month of data pass-through.
Backend
heap.io
Automatically captures every user action in iOS or web apps. Free for up to 10K monthly sessions.
Analytics
heapanalytics.com
Automatically captures every user action in iOS or web apps. Free for up to 5,000 visits/month
Analytics
HelioHost
Non-profit free web hosting with Plesk control panel, PHP, Node.js, Python, Django, Flask, .NET, Perl, CGI, MySQL, PostgreSQL, SQLite, IMAP/POP3/SMTP email, unlimited bandwidth, free subdomains, 1000 MB storage for free with the option to upgrade.
Hosting
helplightning.com
Help over video with augmented reality. Free without analytics, encryption, support
Productivity
Helploom
Customer support software that offers a live chat on the free forever plan. Simple, lightweight and beautiful. Setup is a simple copy-paste script. Built by a developer.
Productivity
helpmonks.com
Shared inbox for teams, free for Open Source and nonprofit organizations
Productivity
heptapod.net
Heptapod is a friendly fork of GitLab Community Edition providing support for Mercurial
Developer Tools
HeroTofu.com
Forms backend with bot detection and encrypted archive. Forward submissions via UI to email, Slack, or Zapier. Use your own front end. No server code is required. The free plan gives unlimited forms and 100 submissions per month.
Productivity
Hex
a collaborative data platform for notebooks, data apps, and knowledge libraries. Free community tier with up to five projects.
Other
HeyForm.net
Drag and drop online form builder. The free tier lets you create unlimited forms and collect unlimited submissions. Comes with pre-built templates, anti-spam, and 100MB file storage.
Productivity
HeyRetro
Real-time sprint retrospective platform with voting, timers, surveys, guest collaboration, and ice-breaker games. The forever-free plan includes one board per month, anonymous surveys, and guest link sharing.
Productivity
HeySpace
Task management tool with chat, calendar, timeline and video calls. Free for up to 5 users.
Productivity
Hightouch
Hightouch is a Reverse ETL platform that helps you sync customer data from your data warehouse to your CRM, marketing, and support tools. The free tier offers you one destination to sync data to.
Analytics
HimitsuShell
A shell script DRM compiler that converts shell scripts into obfuscated binaries using an embedded shell interpreter and anti-debugging (alternative to shc). Free unlimited web edition.
Other
HitKeep
Privacy-focused, open-source web and product analytics platform with a free cloud plan for 3 websites, 3 team members, 60-day data retention, AI analytics, goals, funnels, events, and hits.
Other
HiveMQ
Connect your MQTT devices to the Cloud Native IoT Messaging Broker. Free to connect up to 100 devices (no credit card required) forever.
Communication
holistic.dev
The #1 static code analyzer for Postgresql optimization. Performance, security, and architect database issues automatic detection service
Developer Tools
honeybadger.io
Exception, uptime, and cron monitoring. Free for small teams and open-source projects (12,000 errors/month).
Monitoring
Hook Relay
Add webhook support to your app without the hassles: done-for-you queueing, retries with backoff, and logging. The free plan has 100 deliveries per day, 14-day retention, and 3 hook endpoints.
Other
Hook0
Hook0 is an open-source Webhooks-as-a-service (WaaS) that makes it easy for online products to provide webhooks. Dispatch up to 100 events/day with seven days of history retention for free.
Other
Hookdeck
Develop, test, and monitor your webhooks from anywhere. 100K requests and 100K attempts per month with three days retention.
Infrastructure
hostedscan.com
Online vulnerability scanner for web applications, servers, and networks. Ten free scans per month.
Security
Hosting Checker
Check hosting information such as ASN, ISP, location and more for any domain, website or IP address. Also includes multiple hosting and DNS-related tools.
Other
howuku.com
Track user interaction, engagement, and event. Free for up to 5,000 visits/month
Analytics
HS Ping
A multi-country HS (Harmonized System) and HTS (Harmonized Tariff System) code lookup API, with a free plan offering 100 lookups/day.
Other
httpSMS
Send and receive text messages using your Android phone as an SMS Gateway. Free to send and receive up to 200 messages per month.
Communication
huggingface.co
Build, train, and deploy NLP models for Pytorch, TensorFlow, and JAX. Free up to 30k input characters/mo.
Other
Huly
All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion) - unlimited users, 10GB storage per workspace, 10GB video(audio) traffic.
Productivity
Hybiscus
Build pdf reports using a simple declarative API. The 14-day free tier includes 50 single-page reports with the ability to customize color palettes and fonts.
Other
Hygger
Project management platform. The free plan offers unlimited users, projects & boards with 100 MB of Storage.
Productivity
Hygraph
Offers free tier for small projects. GraphQL first API. Move away from legacy solutions to the GraphQL native Headless CMS - and deliver omnichannel content API first.
CMS
hypercolor.dev
- A curated collection of Tailwind CSS color gradients also provides a variety of generators to create your own.
Design
Hypertune
Type-safe feature flags, A/B testing, analytics and app configuration, with Git-style version control and synchronous, in-memory, local flag evaluation. Free for up to 5 team members with unlimited feature flags and A/B tests.
Developer Tools
iconify.design
- A collection of over 100 icon packs with a unified interface. Allows you to search for icons across packs and export individual icons as SVGs or for popular web frameworks.
Design
Icons8
Icons, illustrations, photos, music, and design tools. Free Plan offers Limited formats in lower resolution. Link to Icons8 when you use our assets.
Design
ideascale.com
Allow clients to submit ideas and vote, free for 25 members in 1 community
Productivity
Idrive e2
S3 compatibility object storage. 10 GB free storage and 10 GB download bandwidth per month.
Cloud
Igloo
Internal portal for sharing documents, blogs, calendars, etc. Free for up to 10 users.
Productivity
Ilograph
interactive diagrams that allow users to see their infrastructure from multiple perspectives and levels of detail. Charts can be expressed in code. The free tier has unlimited private diagrams with up to 3 viewers.
Productivity
Image BG Blurer
- Generate a blurred background frame for an image, using that image source as the background blur, for Notion, Trello, Jira, and more tools
Design
ImageEngine
ImageEngine is an easy to use global image CDN. Sub 60 sec setup. AVIF and JPEGXL support, WordPress-, Magento-, React-, Vue- plugins and more. Claim your free developer account here.
Other
imagefly.io
Responsive images on-demand. CDN fronted image resizing, transcoding and optimizing. 100 MB/month for free
Content Creation
imagekit.io
Image CDN with automatic optimization, real-time transformation, and storage that you can integrate with existing setup in minutes. The free plan includes up to 20GB of bandwidth per month.
Other
ImgBB
ImgBB is an unlimited image hosting servce. Drag and drop your image anywhere on the screen. 32 MB / image limit. Receive Direct image links, BBCode and HTML thumbnails after uploading image. Login to see the upload history.
Storage
Imgbot
Imgbot is a friendly robot that optimizes your images and saves you time. Optimized images mean smaller file sizes without sacrificing quality. It's free for open source.
Storage
imgix
Image Caching, management and CDN. Free plan includes 1000 origin images, infinite transformations and 100 GB bandwidth
Storage
Imitate Email
Sandbox Email Server for testing email functionality across build/qa and ci/cd. Free accounts get 15 emails a day forever.
Communication
imprace.com
Landing page analysis with suggestions to improve bounce rates. Free 5 landing pages/domain
Analytics
Inboxes App
Create up to 3 temporary emails a day, then delete them when you're done from within a handy Chrome extension. Perfect for testing signup flows.
Communication
inboxkitten.com
Free temporary/disposable email inbox, with up to 3-day email auto-deletes. Open source and can be self-hosted.
Communication
incidenthub.cloud
Cloud and SaaS status page aggregator - 20 monitors and 2 notification channels (Slack and Discord) are free forever.
Monitoring
indexisto.com
Site search, free 10 million documents index limit with advertisement block
Development
Infisical
Open source platform that lets you manage developer secrets across your team and infrastructure: everywhere from local development to staging/production 3rd-party services. Free for up to 5 developers.
Security
InfluxDB
Timeseries database, free up to 3MB/5 minutes writes, 30MB/5 minutes reads and 10,000 cardinalities series
Database
Insomnia
Open-source API client for designing and testing APIs, it supports REST and GraphQL
Other
inspector.dev
A complete Real-Time monitoring dashboard in less than one minute with a free forever tier.
Monitoring
Instabug
A comprehensive bug reporting and in-app feedback SDK for mobile apps. Free plan up to 1 app and one member.
Productivity
instadiff.com
Compare website versions with highlighted changes before you deploy, free for 100 pages/month
Productivity
InstallOnAir
Distribute iOS & Android apps over the air. Free plan: unlimited uploads, private links, 2-day expiration for guests, 60 days for registered users.
Developer Tools
instatus.com
Get a beautiful status page in 10 seconds. Free forever with unlimited subs and unlimited teams.
Monitoring
InstaWP
Launch a WordPress site in a few seconds. A free tier with 5 Active Sites, 500 MB Space, 48 hrs Site Expiry.
CMS
instrumentalapp.com
Beautiful and easy-to-use application and server monitoring with up to 500 metrics and 3 hours of data visibility for free
Monitoring
IntenseDebate
A feature-rich comment system for WordPress, Tumblr, Blogger, and many other website platforms.
Communication
Interactive CV
AI-powered resume builder with real-time editing and ATS optimization. Free tier includes automatic CV conversion to premium templates (Harvard, Europass), PDF export, job tracker with unlimited job posting insights and CV sharing with chat/voice features.
Education
Internet.nl
Test for modern Internet Standards like IPv6, DNSSEC, HTTPS, DMARC, STARTTLS and DANE
Security
internxt.com
Internxt Drive is a zero-knowledge file storage service based on absolute privacy and uncompromising security. Sign up and get 10 GB for free, forever!
Other
IntoDNS.ai
DNS and email security analyzer that checks SPF, DKIM, DMARC, DNSSEC, BIMI, MTA-STS, and 40+ blacklists with AI-powered explanations and fix suggestions. 100% free, no signup required.
Other
Invantive Cloud
Access over 70 (cloud)platforms such as Exact Online, Twinfield, ActiveCampaign or Visma using Invantive SQL or OData4 (typically Power BI or Power Query). Includes data replication and exchange. Free plan for developers and implementation consultants. Free for specific platforms with limitations in data volumes.
Other
ionicframework.com
Repo and tools to develop applications with Ionic; also you have an ionic repo
Developer Tools
IP Geolocation
IP Geolocation API - Forever free plan for developers with a 1,000 requests per day limit.
Other
IP Geolocation API by ipwho.org
2,000 free requests per day. Fast, enterprise grade API at non-enterprise prices. Trusted by developers, corporate, government and education clients. Servers in 12+ regions.
Other
ip-api
IP Geolocation API, Free for non-commercial use, no API key required, limited to 45 req/minute from the same IP address for the free plan.
Other
ip2geo.dev
IP geolocation API to convert IP addresses into location data including city, country, timezone, ASN, and currency. The free plan includes 1,000 requests per month.
Other
IP2Location
Freemium IP geolocation service. LITE database is available for free download. Import the database in the server and perform a local query to determine the city, coordinates, and ISP information.
Other
IP2Location.io
Freemium, fast, and reliable IP geolocation API. Get data like city, coordinates, ISP, ASN, AS data and more. The free plan includes 50k credits per month. IP2Location.io also offers 500 free WHOIS and hosted domain lookups per month. See domain registration details and find domains hosted on a specific IP. Upgrade to a paid plan for more features.
Other
ipapi
IP Address Location API by Kloudend, Inc - A reliable geolocation API built on AWS, trusted by Fortune 500. The free tier offers 30k lookups/month (1k/day) without signup.
Other
ipapi.is
A reliable IP Address API from Developers for Developers with the best Hosting Detection capabilities that exist. The free plan offers 1000 lookups without signup.
Other
IPinfo
Fast, accurate, and free (up to 50k/month) IP address data API. Offers APIs with details on geolocation, companies, carriers, IP ranges, domains, abuse contacts, and more. All paid APIs can be trialed for free.
Other
IPLocate
IP Geolocation API, free up to 1,000 requests/day. Includes proxy/VPN/hosting detection, ASN data, IP to Company, and more. IPLocate also offers free downloadable IP to Country and IP to ASN databases in CSV or GeoIP-compatible MMDB formats.
Other
IPTrace
An embarrassingly simple API that provides your business with reliable and helpful IP geolocation data with 50,000 free lookups per month.
Other
ironSource atom
Atom Data Flow Management is a data pipeline solution, 10 million monthly events free
Analytics
isitdownstatus.com
Free public JSON API returning real-time status for 500+ popular services (GitHub, Stripe, AWS, etc.). No auth required, CORS enabled.
Monitoring
Iubenda
Privacy and cookie policies and consent management. The free tier offers limited privacy and cookie policy as well as cookie banners.
Security
jare.io
You should login using your GitHub account and register your domain. Uses AWS CloudFront
Web Development
JDoodle
Online compiler and editor for more than 60 programming languages with a free plan for REST API code compiling up to 200 credits per day.
Developer Tools
jetbrains.com
Free hosted YouTrack (InCloud) for FOSS projects, private projects {[free for 10 users](https://www.jetbrains.com/youtrack/buy/)}
Productivity
Jira
Advanced software development project management tool used in many corporate environments. Free plan for up to 10 users.
Productivity
jitpack.io
Maven repository for JVM and Android projects on GitHub, free for public projects.
Developer Tools
Jotform.com
Create online forms for free, collect submissions, accept payments, automate workflows, and get documents signed with built-in e-signatures. Free plan includes 5 forms, 100 monthly submissions, 10 e-sign documents, 10 payment submissions, and more.
Forms
jsbin.com
JS Bin is another playground and code-sharing site of front-end web (HTML, CSS, and JavaScript. It Also supports Markdown, Jade, and Sass).
Developer Tools
jsdelivr.com
CDN of OSS (JS, CSS, fonts) for developers and webmasters, accepts PRs to add more
Web Development
jsfiddle.net
JS Fiddle is a playground and code-sharing site of front-end web, supporting collaboration.
Developer Tools
JSON IP
Returns the Public IP address of the client it is requested from. No registration is required for the free tier. Using CORS, data can be requested using client-side JS directly from the browser. Useful for services monitoring change in client and server IPs. Unlimited Requests.
Other
JSON Serve
A free service that helps developers to store JSON objects and use that JSON as a REST API in their app.
Other
JSON to Table
Convert JSON into an interactive table for quick viewing, editing, and sharing online.
Other
JSON2Video
A video editing API to automate video marketing and social media videos, programmatically or with no code.
Other
JSONGrid
Free tool to Visualize, Edit, Filter complex JSON data into beautiful tabular Grid. Save and Share JSON data over link link.
Other
JSONing
Create a fake REST API from a JSON object, and customize HTTP status codes, headers, and response bodies.
Other
JSONPlaceholder
Some REST API endpoints that return some fake data in JSON format. The source code is also available if you would like to run the server locally.
Developer Tools
JSONSwiss
JSONSwiss is a powerful online JSON viewer, editor, and validator. Format, visualize, search, and manipulate JSON data with AI-powered repair, tree view, table view, code generation in 12+ programming languages, convert json to csv, xml, yaml, properties and more.
Other
JustBlogged
Free blogging platform with custom domain support, and fast global performance.
Content
KaiMail
Email forwarding for custom domains with ARC/DKIM signing. Free plan includes 1 domain, 1 mailbox, 300 emails/month, and up to 1MB message size. Email receiving webhook also available. Special plans for open-source projects.
Email Services
kan.bn
A powerful, flexible kanban app that helps you organise work, track progress, and deliver results-all in one place. Free plan up to 1 user for unlimited boards, unlimited lists, unlimited cards.
Productivity
kanbanery.com
Board based project management. Free for 2 users, premium tiers with more options
Productivity
kanbanflow.com
Board based project management. Free, premium version with more options
Productivity
kanbantool.com
Kanban board based project management. Free, paid plans with more options
Productivity
kandi
Jumpstart Application Development: build custom functions, and use cases, and complete applications faster through code snippets and open-source library reuse.
Other
Karbon Sites
An AI-powered site builder and editor that generates production-ready frontend code from text prompts, sketches, or resumes. Features include native Android (APK) export and a free tier with 5 generations per month (unlimited via custom Gemini API key).
Developer Tools
katalon.com
Provides a testing platform that can help teams of all sizes at different levels of testing maturity, including Katalon Studio, TestOps (+ Visual Testing free), TestCloud, and Katalon Recorder.
Developer Tools
keen.io
Custom Analytics for data collection, analysis and visualization. 50,000 events/month free
Analytics
Keploy
Keploy is a functional testing toolkit for developers. Recording API calls generates E2E tests for APIs (KTests) and mocks or stubs(KMocks). It is free for Open Source projects.
Developer Tools
Ketch
Consent management and privacy framework tool. The free tier offers most features with a limited visitor count.
Security
Keybase
Keybase is a FOSS alternative to Slack; it keeps everyone's chats and files safe, from families to communities to companies.
Productivity
keychest.net/speedtest
Independent speed test and TLS handshake latency test against Digital Ocean
Monitoring
Keywords AI
The best LLM monitoring platform. One format to call 200+ LLMs with 2 lines of code. 10,000 free requests every month and $0 for platform features!
AI & Machine Learning
Khan Academy
Free online guides for learning basic and advanced HTML/CSS, JavaScript and SQL.
Education
KillBait API
KillBait API allows users to submit URLs for content evaluation, detecting potential clickbait and categorizing articles. The API is designed for moderate publishing frequency, with limits of 1 submission per hour and 10 per day. Media partners can request higher limits.
Other
Killer Coda
Interactive playground in your browser to study Linux, Kubernetes, Containers, Programming, DevOps, Networking
Other
Kinde
Simple, robust authentication you can integrate with your product in minutes. Everything you need to get started with 7,500 free MAU.
Security
Kinsta Static Site Hosting
Deploy up to 100 static sites for free, custom domains with SSL, 100 GB monthly bandwidth, 260+ Cloudflare CDN locations.
Hosting
kinvey.com
Mobile backend, starter plan has unlimited requests/second, with 2 GB of data storage, as well as push notifications for up 5 million unique recipients. Enterprise application support
Database
Kitemaker.co
Collaborate through all phases of the product development process and keep track of work across Slack, Discord, Figma, and Github. Unlimited users, unlimited spaces. Free plan up to 250 work items.
Productivity
Kiter.app
Let anyone organize their job search and track interviews, opportunities, and connections. Powerful web app and Chrome extension. Completely free.
Productivity
knapsackpro.com
Speed up your tests with optimal test suite parallelization on any CI provider. Split Ruby, JavaScript tests on parallel CI nodes to save time. Free plan for up to 10 minutes of test files and free unlimited plan for Open Source projects.
Developer Tools
knock.app
Notifications infrastructure for developers. Send to multiple channels like in-app, email, SMS, Slack, and push with a single API call. The free plan includes 10,000 messages/mo.
Communication
Knocket
Free-forever contact layer for indie developers and small teams: live chat widget for websites and mobile apps (iOS/Android/Flutter/React Native via WebView), a shareable contact page (Linktree-style with socials, booking links, and blog), and a unified Telegram/email inbox. Reply from Telegram directly (no dashboard needed). Meeting scheduler, multi-language, light/dark themes. Companion open-source AI auto-reply agent. No ads, no seat limits.
Collaboration
kogiQA
A web UI automation tool that functions without the need for selectors. Every developer gets 500 actions per month for free.
Testing
konghq.com
API Marketplace and powerful private and public API tools. With the free tier, some features such as monitoring, alerting, and support, are limited.
Other
kontent.ai
A Content-as-a-Service platform that gives you all the headless CMS benefits while empowering marketers at the same time. The developer plan provides two users with unlimited projects with two environments for each, 500 content items, two languages with Delivery and Management API, and Custom elements support. You can use more detailed plans to meet your needs.
CMS
Koyeb
Koyeb is a developer-friendly serverless platform to deploy apps globally. Seamlessly run Docker containers, web apps, and APIs with git-based deployment, native autoscaling, a global edge network, and built-in service mesh and discovery. Free Instance lets you deploy a web service in Frankfurt, Germany or Washington, D.C., US. Free Managed Postgres database available in Frankfurt (Germany), Washington, D.C. (US), and Singapore. 512MB memory, 2GB storage, and 0.1 CPU.
Cloud
kraken.io
Image optimization for website performance as a service, free plan up to 1 MB file size
Content Creation
Kreya
Free gRPC GUI client to call and test gRPC APIs. Can import gRPC APIs via server reflection.
Other
Kumu.io
Relationship maps with animation, decorations, filters, clustering, spreadsheet imports, etc. The free tier allows unlimited public projects. Graph size unlimited. Free private projects for students. Sandbox mode is available if you prefer not to leave your file publicly online (upload, edit, download, discard).
Productivity
Kwes.io
Feature rich form endpoint. Works great with static sites. The free plan includes up to 1 website with up to 50 monthly submissions.
Productivity
LabEx
Develop skills in Linux, DevOps, Cybersecurity, Programming, Data Science, and more through interactive labs and real-world projects.
Education
lambdatest.com
Manual, visual, screenshot, and automated browser testing on selenium and cypress, [free for Open Source]
Developer Tools
landen.co
Generate, edit, and publish beautiful websites and landing pages for your startup. All without code. The free tier allows you to have one website, fully customizable and published on the web.
Design
Landings
[Web screenshots] Find the best landing pages for your design inspiration based on your preference.
Design
Langfuse
Open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications. Free forever plan includes 50k observations per month and all platform features. [#opensource]
AI & Machine Learning
Langtrace
enables developers to trace, evaluate, manage prompts and datasets, and debug issues related to an LLM application’s performance. It creates open telemetry standard traces for any LLM which helps with observability and works with any observability client. Free plan offers 50K traces/month.
AI & Machine Learning
LangWatch
A LLMOps platform helping AI teams measure, monitor, and optimize LLM applications for reliability, cost-efficiency, and performance. With a powerful DSPy component, we enable seamless collaboration between engineers and non-technical teams to fine-tune and productionize GenAI products. Free plan includes all platform features, 1k traces/month and 1 workflow DSPy optimizers. [#opensource]
AI & Machine Learning
Lapa Ninja
[Landing page / UI KIts / Web screenshots] Lapa Ninja is a gallery featuring the best 6025 landing page examples, free books for designers and free UI kits from around the web.
Design
Lastest
Ship fast. Don't break things. AI-supported visual verification and tests you can actually trust. Free forever plan: 1 project, 500 runner-minutes/mo, 1 concurrent run, no credit card.
Testing
Latitude
Open-source (MIT) LLM observability and evaluation platform to trace, monitor, and evaluate AI agents in production. Free Starter plan includes 20K credits/month, 30-day data retention, and unlimited seats. #opensource
AI & Machine Learning
LatLng
Geocoding, reverse geocoding, places, static maps, and vector map tiles APIs. Free tier includes 3,000 geocoding requests/day, 300 reverse geocoding requests/day, and 100 static map images/day.
Analytics
latlon.io
Geocoding API + school districts, census geography divisons and other address based data. 2,500 free requests/month
Analytics
LayerCI
CI for full stack projects. One full stack preview environment with 5GB memory & 3 CPUs.
CI/CD
LayoutKeeper
Free open-source macOS menu bar utility that restores windows to their assigned monitor and Space when displays are reconnected, with per-port display arrangement switching, hardware DDC brightness and volume control, ambient brightness sync, and 4-mode Keep Awake.
Productivity
Lazarus
Lazarus is a Delphi-compatible cross-platform IDE for Rapid Application Development.
Developer Tools
LeanCloud
Mobile backend. 1GB of data storage, 256MB instance, 3K API requests/day, and 10K pushes/day are free.
Backend
leapcell
Leapcell is a reliable distributed applications platform, providing everything you need to seamlessly support your rapid growth. The free plan includes 100k service invocations, 10k async tasks and 100k Redis commands.
Cloud
Lecto
Machine Translation API with Free tier (30 free requests, 1000 translated characters per request). Integrated with the Loco Translate Wordpress plugin.
Productivity
leiga.com
Leiga is a SaaS product that uses AI to automatically manage your projects, helping your team stay focused and unleash immense potential, ensuring your projects progress as planned. Free for up to 10 users, 20 custom fields, 2GB of storage space, Video Recording with AI limited to 5 mins/video, Automation Runs at 20/user/month.
Productivity
libraries.io
Search and dependency update notifications for 32 different package managers, free for open source
Development
LibreQR
Free QR code generator focused on privacy and no tracking. Free to use with no data collection.
Storage
Lightly
Improve your machine-learning models by using the correct data. Use datasets of up to 1000 samples for free.
Other
lil'bots
write and run scripts online utilizing free built-in APIs like OpenAI, Anthropic, Firecrawl and others. Great for building AI agents / internal tooling and sharing with team. Free-tier includes full access to APIs, AI coding assistant and 10,000 execution credits / month.
Developer Tools
Linear
Issue tracker with a streamlined interface. Free for unlimited members, up to 10MB file upload size, 250 issues
Productivity
Lingo.dev
Open-source AI-powered CLI for web & mobile localization. Bring your own LLM, or use 10,000 free words every month via Lingo.dev-managed localization engine.
Productivity
Linkinize
Bookmark manager for teams with tagging, multi-workspaces, and collaboration. Free plan includes 4 workspaces and 10 team members.
Productivity
linkok.com
Online broken link checker, free for small websites up to 100 pages, completely free for open-source projects.
Monitoring
Livecycle
Livecycle is an inclusive collaboration platform that makes workflows frictionless for cross-functional product teams and open-source projects.
Productivity
loadfocus.com
Load and speed tests for websites, mobile apps and APIs, monitoring,... Free 5 tests/month, 120 clients/test, 1 monitor, 1 location
Development
Loadly
iOS & Android beta apps distribution service offers completely free services with unlimited downloads, high-speed downloads, and unlimited uploads.
Developer Tools
loadmill.com
Automatically create API and load tests by analyzing network traffic. Simulate up to 50 concurrent users for up to 60 minutes for free monthly.
Developer Tools
localazy.com
Free for 1000 source language strings, unlimited languages, unlimited contributors, startup and open source deals
Productivity
LocalCert
Free `.localcert.net` subdomains compatible with public CAs for use with-in private networks
Infrastructure
Localhero.ai
Automatic on-brand translations on every pull request, with glossary and translation memory. Free for 1 project, 250 translation credits/month (~4,000 words).
Productivity
Localit
Fast, developer-friendly localization platform with seamless and free GitHub/GitLab integration, AI-assisted and manual translations, and a generous free plan (includes 2 users, 500 keys, and unlimited projects).
Productivity
LocalOps
Deploy your app on AWS/GCP/Azure in under 30 minutes. Setup standardised app environments on any cloud, which come with in-built continuous deployment automation and advanced observability. The free plan allows 1 user and 1 app environment.
CI/CD
localtonet
Multi-protocol tunneling for HTTP, TLS, TCP, UDP, File Server (Default, SFTP, WebDAV), and Proxy Tunnel (HTTP, SOCKS5, Shadowsocks, VLESS). Free plan: 1 tunnel, 1GB/month bandwidth, 30 min timeout (excl. HTTP Tunnels).
Infrastructure
localtunnel
Expose locally running servers over a tunnel to a public URL. Free hosted version, and.
Infrastructure
LocalXpose
Reverse proxy that enables you to expose your localhost servers to the internet. The free plan has 15 minutes tunnel lifetime.
Infrastructure
Lockitbot
Reserve and lock shared resources within Slack like Rooms, Dev environments , servers etc. Free for upto 2 resources
Productivity
Loco
Free up to 2000 translations, Unlimited translators, ten languages/project, 1000 translatable assets/project
Productivity
log.dog
LogDog is a remote debugging/logging SDK (iOS and Android) with a web ui. Captures all logs, requests and events in real-time and allows to intercept them. Free for up to 100MB of logs every month
Monitoring
LoginLlama
A login security API to detect fraudulent and suspicious logins and notify your customers. Free for 1,000 logins per month.
Other
logintc.com
Two-factor authentication (2FA) by push notifications, free for 10 users, VPN, Websites and SSH
Security
Logo.dev
Company logo API with 44M+ brands that's as easy as calling a URL. First 10,000 API calls are free.
Design
LogSpot
Full unified web and product analytics platform, including embeddable analytics widgets and automated robots (slack, telegram, and webhooks). Free plan includes 10,000 events per month.
Analytics
logtail.com
ClickHouse-based SQL-compatible log management. Free up to 1 GB per month, three days retention.
Monitoring
Logto
Develop, secure, and manage user identities of your product - for both authentication and authorization. Free for up to 5,000 MAUs with open-source self-hosted option available.
Security
logzab.com
Audit trail management system. Free 1,000 user activity logs per month, 1-month retention, for up to 5 projects.
Monitoring
Lorem Picsum
A Free tool, easy to use, stylish placeholders. After our URL, add your desired image size (width & height), and you'll get a random image.
Design
LoSpec
Online tools for creating pixel art and other restrictive digital art, lots of tutorials/pallet list available to choose from for your games
Developer Tools
lost-pixel.com
holistic visual regression testing for your Storybook, Ladle, Histoire stories and Web Apps. Unlimited team members, totally free for open-source, 7,000 snapshots/month.
Developer Tools
LottieFiles
The world’s largest online platform for the world’s most miniature animation format for designers, developers, and more. Access Lottie animation tools and plugins for Android, iOS, and Web.
Design
LovelyLanding.net
[Landing Page Designs] Frequently updated landing page screenshots. Includes Desktop, Tablet, and Mobile screenshots.
Design
Lucidchart
An online diagram tool with collaboration features. Free plan with three editable documents, 100 professional templates, and basic collaboration features.
Productivity
Lumenfall.ai
AI media gateway providing unified access to leading image generation models via an OpenAI-compatible API. The platform itself is free to use with zero markup and no subscription fee. Inference costs for most models are billed at provider price, but FLUX.1 [schnell] FP8 is offered free forever with unlimited usage for registered users. Built-in failover and provider resilience included.
AI & Machine Learning
Lunacy
- Free graphic design tool with offline support, built-in assets (icons, photos, illustrations), and real-time collaboration. The free tier includes 10 cloud documents, a 30-day history, low-res assets, and basic design tools.
Design
MagicPattern
A collection of CSS & SVG background generators & tools for gradients, patterns, and blobs.
Design
Mail7.io
Free Temp Email Addresses for QA Developers. Create email addresses instantly using Web Interface or API.
Communication
mailboxlayer.com
Email validation and verification JSON API for developers. 1,000 free API requests/month
Business
MailboxValidator
Email verification service using real mail server connection to confirm valid email. The free API plan has 100 verifications per month.
Other
mailchannels.com
Email API with REST API and SMTP integrations, free for upto 3,000 emails/month.
Communication
Mailcheck.ai
Prevent users to sign up with temporary email addresses, 120 requests/hour
Communication
Maildroppa
Up to 100 subscribers and unlimited emails as well as automations for free.
Communication
Maileroo
SMTP relay and email API for developers. 5,000 emails per month, unlimited domains, free email verification, blacklist monitoring, mail tester and more.
Communication
mailsac.com
Free API for temporary email testing, free public email hosting, outbound capture, email-to-slack/websocket/webhook
Communication
mailtrap.io
Fake SMTP server for development, free plan with 1 inbox, 50 messages, no team member, 2 emails/second, no forward rules
Business
Make
The workflow automation tool lets you connect apps and automate workflows using UI. It supports many apps and the most popular APIs. Free for public GitHub repositories, and free tier with 100 Mb, 1000 Operations, and 15 minutes of minimum interval.
CI/CD
ManageEngine Log360 Cloud
Log Management service powered by Manage Engine. Free Plan offers 50 GB storage with 15 days Storage Retention and 7 days search.
Monitoring
MantleDB
Anonymous JSON storage for scripts and tiny apps. No signup required; uses Master AID for updates and Read-Only RID for public fetching. Free tier includes 1 bucket (1MB limit) with a 72h inactivity scavenger policy.
Other
manubes
Powerful no-code cloud platform with a focus on industrial production management. Free for one user with 1 million workflow activities a month ().
Developer Tools
maptiler.com
Vector maps, map services and SDKs for map visualization. Free vector tiles with weekly updates and four map styles.
Analytics
MarionetteOps.com
Server monitoring, public status pages, and service uptime monitoring.
Monitoring
Markdown Tools
Tools for converting HTML, CSVs, PDFs, JSON, and Excel files to and from Markdown
Other
Market Data API
Provides real-time and historical financial data for stocks, options, mutual funds, and more. The Free Forever API tier allows for 100 daily API requests at no charge.
Other
MarkUp
MarkUp lets you collect feedback directly on top of your websites, PDFs and images.
Productivity
mashape.com
API Marketplace and powerful tools for private and public APIs. With the free tier, some features are limited such as monitoring, alerting and support
Development
Mastershot
Completely free browser-based video editor. No watermark, up to 1080p export options.
Design
Mattermost
Secure collaboration for technical teams. Free plan with unlimited channels, playbooks, boards, users, 10GB storage, and more.
Productivity
Maxim
An LLM evaluation and observability platform with agent simulation and prompt playground. Free tier offers 10k monthly logs, access to prompt playground, simulations and evaluations via BYOK.
AI & Machine Learning
Maxim AI
Simulate, evaluate, and observe your AI agents. Maxim is an end-to-end evaluation and observability platform, helping teams ship their AI agents reliably and >5x faster. Free forever for indie developers and small teams (3 seats).
Other
MConverter
Convert files in bulk. Supports many formats, including AVIF and JXL. Extract image frames from videos. Compress PDFs. Free for 15 files per 24h, up to 100 MB each, processed in batches of eight.
Other
MDB GO
Free hosting for one project with two weeks Container TTL, 500 MB RAM per project, SFTP - 1G disk space.
Hosting
MDBootstrap
Free for personal & commercial use Bootstrap, Angular, React, and Vue UI Kits with over 700 components, stunning templates, 1-min installation, extensive tutorials & colossal community.
Design
Mediaworkbench.ai
MediaWorkbench.ai offers 100,000 free words for Azure OpenAI, DeepSeek, and Google Gemini models, enabling users to access powerful tools for code generation, deep research, and image creation.
AI & Machine Learning
MeetBackdrops
Free HD virtual backgrounds for video calls on Zoom, Microsoft Teams, and Google Meet. 1,000+ studio-designed environments with no signup required.
Collaboration
meetfinch.com
Easily create SSL encrypted URLs that tunnel to your local development machine
Web Development
MeisterTask
Online task management for teams. Free up to 3 projects and unlimited project members.
Productivity
MemCachier
Managed Memcache service. Free for up to 25MB, 1 Proxy Server, and basic analytics
Database
memfault.com
Cloud device observability and debugging platform. 100 devices free for,, and devices.
Monitoring
mendix.com
Rapid Application Development for Enterprises, unlimited number of free sandbox environments supporting 10 users, 100 MB of files and 100 MB database storage each
Web Development
Mergify
workflow automation and merge queue for GitHub - Free for public GitHub repositories
CI/CD
Metalama
Only for C#. Metalama generates the boilerplate of the code on the fly during compilation so that your source code remains clean. It is free for open-source projects, and its commercial-friendly free tier includes three aspects.
AI & Machine Learning
Metashot
Open Graph (OG) social preview image generation API. Generate dynamic 1200×630 images for Twitter, LinkedIn and Facebook via URL params, edge-cached on Cloudflare Workers. Free tier: 1,000 renders/month. Paid plans from $12/month.
Other
Meteor Cloud
Galaxy hosting. Meteor's platform-as-a-service for Meteor apps includes free MongoDB Shared Hosting and automatic SSL.
Cloud
Meteosource Weather API
global weather API for current and forecasted weather data. Forecasts are based on a machine learning combination of more weather models to achieve better accuracy. The free plan comes with 400 calls per day.
Other
meterian.io
Monitor Java, Javascript, .NET, Scala, Ruby, and NodeJS projects for security vulnerabilities in dependencies. Free for one private project, unlimited projects for open source.
Security
MetricsWave
Privacy-friendly Google Analytics alternative for developers. Free plan allows 1M pageviews per month without credit card required.
Analytics
microenv.com
Create fake REST API for developers with the possibility to generate code and app in a docker container.
Other
microlink.io
It turns any website into data such as metatags normalization, beauty link previews, scraping capabilities, or screenshots as a service. 50 requests per day, every day free.
Other
Microsoft 365 Developer Program
Get a free sandbox, tools, and other resources you need to build solutions for the Microsoft 365 platform. The subscription is a 90-day (Windows excluded) which is renewable. It is renewed if you're active in development(measured using telemetry data & algorithms).
Other
Microsoft Ajax
The Microsoft Ajax CDN hosts popular third-party JavaScript libraries such as jQuery and enables you to easily add them to your Web application
CDN
Microsoft Clarity
Clarity is a free, easy-to-use tool that captures how real people use your site.
Analytics
Microsoft PowerBI
Business Insights & Analytics by Microsoft. Free Plan offers limited use with 1 Million User licenses.
Analytics
Microsoft Teams
Microsoft Teams is a chat-based digital hub that brings conversations, content, and apps together in one place all from a single experience. Free for up to 500k users.
Productivity
microtica.com
Startup environments with ready-made infrastructure components, deploy apps on AWS for free, and support your production workloads. The free tier includes 1 Environment (on your AWS account), 2 Kubernetes Services, 100 build minutes per month, and 20 monthly deployments.
CI/CD
Middleware.io
Middleware observability platform provides complete visibility into your apps & stack, so you can monitor & diagnose issues at scale. They have a free forever plan for Dev community use that allows Log monitoring for up to 1M log events, Infrastructure monitoring & APM for up to 2 hosts.
Monitoring
Mind Elixir
Mind mapping web app for organizing ideas into interactive maps, with outline mode, tags, local storage and MCP support. Free plan available, with paid Annual and Lifetime upgrades.
Productivity
Mindmup.com
Unlimited mind maps for free and store them in the cloud. Your mind maps are available everywhere, instantly, from any device.
Design
Mintlify
Modern standard for API documentation. Beautiful and easy-to-maintain UI components, in-app search, and interactive playground. Free for 1 editor.
Other
Miradore
Device Management service. Stay up-to-date with your device fleet and secure unlimited devices for free. The free plan offers basic features.
Productivity
Mirin
Website platform for developer-built React, Vue, or Svelte component sites with visual editing, forms, analytics, and global CDN hosting. Free tier includes 1 site with unlimited pages and submissions.
Hosting
Mirna Sockets
Free Socket as a Service Platform that gives you a wss:// URL when deploying your Web Socket Server code and also allows you to monitor its performance.
Infrastructure
Miro
Scalable, secure, cross-device, and enterprise-ready collaboration whiteboard for distributed teams. With a freemium plan.
Productivity
MIT OpenCourseWare
MIT OpenCourseWare is an online publication of materials from over 2,500 MIT courses, freely sharing knowledge with learners and educators around the world. Youtube channel can be found at [@mitocw]
Education
Mobbin
[Mobile screenshots] Save hours of UI & UX research with our library of 50,000+ fully searchable mobile app screenshots.
Design
Mobile Patterns
[Mobile screenshots] A design inspirational library featuring the finest UI UX Patterns (iOS and Android) for designers, developers, and product makers to reference.
Design
Mock N Roll
Free Mocks API Service-a powerful tool to simulate real API responses without backend delays. Perfect for frontend devs, QA testers, and DevOps teams..
Other
mockable.io
Mockable is a simple configurable service to mock out RESTful API or SOAP web-services. This online service allows you to quickly define REST API or SOAP endpoints and have them return JSON or XML data
Development
MockAPI
MockAPI is a simple tool that lets you quickly mock up APIs, generate custom data, and perform operations using a RESTful interface. MockAPI is meant to be a prototyping/testing/learning tool. One project/2 resources per project for free.
Other
mockaroo
Mockaroo lets you generate realistic test data in CSV, JSON, SQL, and Excel formats. You can also create mocks for back-end API.
Developer Tools
Mockerito
Free mock REST API service providing realistic data across 9 domains (e-commerce, finance, healthcare, education, recruitment, social media, stock markets, weather, and aviation). No mandatory signup, no API keys, unlimited requests. Perfect for frontend prototyping, API testing, learning and teaching web development.
Other
Mockfly
Mockfly is a trusted development tool for API mocking and feature flag management. Quickly generate and control mock APIs with an intuitive interface. The free tier offers 500 requests per day.
Other
Mocki
A tool that lets you create mock GraphQL and REST APIs synced to a GitHub repository. Simple REST APIs are free to develop and use without signup.
Other
Mocklets
an HTTP-based mock API simulator that helps simulate APIs for faster parallel development and more comprehensive testing, with a lifetime free tier.
Developer Tools
Mocko.dev
Proxy your API, choose which endpoints to mock in the cloud and inspect traffic, for free. Speed up your development and integration tests.
Other
Mockplus iDoc
Mockplus iDoc is a powerful design collaboration & handoff tool. Free Plan includes three users and five projects with all features available.
Design
mockupmark.com
Create realistic t-shirt and clothing mockups for social media and E-commerce, 40 free mockups.
Design
Mocky
A simple web app to generate custom HTTP responses for mocking HTTP requests. Also available as.
Other
Modal
AI-driven IaaS with generous compute, storage; offers $30 (might be limited to $5 on certain accounts) of free monthly credits
Cloud Computing
Modeldraw.com
Complete diagramming platform with UML, system architecture, flowcharts, mind maps, and Agile workflows. Real-time collaboration with unlimited team members, no credit card required.
Design
Moderne.io
Automatic source code refactoring. Moderne offers framework migrations, code analysis with remediation, and unrivaled code transformation at scale, so developers can spend their time building new things instead of maintaining the old. Free for Open Source.
Developer Tools
mogenius
Easily build, deploy, and run services on Kubernetes. The free tier supports connecting a local Kubernetes with mogenius, enabling individual developers to create a production-like test environment on their machine.
Cloud
MojoAuth
MojoAuth makes it easy to implement Passwordless authentication on your web, mobile, or any application in minutes.
Security
Molasses
Powerful feature flags and A/B testing. Free up to 3 environments with five feature flags each.
Developer Tools
Momentary Email
Free Temporary Email Addresses. Read incoming emails on the website or by RSS feed.
Communication
monique.io
Create dashboards directly from SQL results, JSON data, API respones, Unix commands' output. Define alarms in Javascript. Free for 25000 submissions per month.
Analytics
MonitorMonk
Minimalist uptime monitoring with beautiful status pages. The Forever Free plan offers HTTPS, Keyword, SSL and Response-time monitorming for 10 websites or api-endpoints, and provides 2 dashboards/status pages.
Monitoring
moss.sh
Help developers deploy and manage their web apps and servers. Free up to 25 git deployments per month
Productivity
Multi-Exit IP Address Checker
A free and simple tool to check your exit IP address across multiple nodes and understand how your IP appears to different global regions and services. Useful for testing rule-based DNS splitting tools such as Control D.
Other
Mutant Mail
Free 10 Email IDs, 1 Domain, 1 Mailbox. Single Mailbox for All Email IDs.
Email Services
MySQL Visual Explain
Easy-to-understand and free MySQL EXPLAIN output visualizer to optimize slow queries.
Other
Namae
Search various websites like GitHub, Gitlab, Heroku, Netlify, and many more for the availability of your project name.
Developer Tools
Namekit
AI-powered domain discovery – find available, standard-price names instantly. Free daily queries.
Other
Nami ML
Complete platform for in-app purchases and subscriptions on iOS and Android, including no-code paywalls, CRM, and analytics. Free for all base features to run an IAP business.
API Tools
Napkin
FaaS with 500Mb of memory, a default timeout of 15 seconds, and 5,000 free API calls/month rate-limited to 5 calls/second.
Cloud
Nappy
- Beautiful photos of Black and Brown people, for free. For commercial and personal use.
Design
Neo4j Aura
Managed native Graph DBMS / analytics platform with a Cypher query language and a REST API. Limits on graph size (50k nodes, 175k relationships).
Database
Neon
Managed PostgreSQL, 0.5 GB of storage (total), 1 Project ,10 branches, Unlimited Databases, always-available primary branch ( Auto suspend after 5 minutes), 20 hours of Active time per month (total) for non-primary branch compute.
Database
netdata.cloud
Netdata is an open-source tool to collect real-time metrics. It's a growing product and can also be found on GitHub!
Monitoring
netlify.com
Builds, deploy and hosts static site or app, free for 100 MB data and 1 GB bandwidth
Web Development
newreleases.io
Receive notifications on email, Slack, Telegram, Discord, and custom webhooks for new releases from GitHub, GitLab, Bitbucket, Python PyPI, Java Maven, Node.js NPM, Node.js Yarn, Ruby Gems, PHP Packagist, .NET NuGet, Rust Cargo and Docker Hub.
Other
News API
Search news on the web with code, and get JSON results. Developers get 100 queries free each day. Articles have a 24 hour delay.
Other
nextbillion.ai
Maps related services: Geocoding, Navigation (Direction, Routing, Route Optimization, Distance Matrix), Maps SDK (Vector, Static, Mobile SDK). for each services.
Analytics
NextReset
Free source-linked Codex reset history and official AI service incident updates, with a personal browser-local reset timer.
Monitoring
nhost.io
Serverless backend for web and mobile apps. The free plan includes PostgreSQL, GraphQL (Hasura), Authentication, Storage, and Serverless Functions.
Backend
Nile
A Postgres platform for B2B apps. Unlimited databases, Always available with no shutdown, 1GB of storage (total), 50 million query tokens, autoscaling, unlimited vector embeddings
Database
nitropack.io
Accelerate your site's speed on autopilot with complete front-end optimization (caching, images and code optimization, CDN). Free for up to 5,000 pageviews/month
Storage
nixstats.com
Free for one server. E-Mail Notifications, public status page, 60-second interval, and more.
Monitoring
noip
a dynamic DNS service that allows up to 3 hostnames free with confirmation every 30 days
Infrastructure
noip.at
Free DDNS service without registration, tracking, logging or advertising. No limit to domains.
Infrastructure
nominatim.org
OpenStreetMap's free geocoding service, providing global address search functionality and reverse geocoding capabilities.
Analytics
Northflank
Build and deploy microservices, jobs, and managed databases with a powerful UI, API & CLI. Seamlessly scale containers from version control and external Docker registries. The free tier includes two services, two cron jobs and 1 database.
Cloud
NotABug
NotABug.org is a free-software code collaboration platform for freely licensed projects, Git-based
Developer Tools
NotificationAPI.com
Add user notifications to any software in 5 minutes. The free plan includes 10,000 notifications/month + 100 SMS and Automated Calls.
Communication
Notion
Notion is a note-taking and collaboration application with markdown support that integrates tasks, wikis, and databases. The company describes the app as an all-in-one workspace for note-taking, project management and task management. In addition to cross-platform apps, it can be accessed via most web browsers.
Productivity
Novu.co
The open-source notification infrastructure for developers. Simple components and APIs for managing all communication channels in one place: Email, SMS, Direct, In-App and Push. The free plan includes 30,000 notifications/month with 90 days of retention.
Communication
nTask
Project management software that enables your teams to collaborate, plan, analyze, and manage everyday tasks. The essential plan is free forever with 100 MB storage and five users/teams. Unlimited workspaces, meetings, assignments, timesheets, and issue tracking.
Productivity
Nuclino
A lightweight and collaborative wiki for all your team's knowledge, docs, and notes. Free plan with all essential features, up to 50 items, and 5GB storage.
Productivity
numverify.com
Global phone number validation and lookup JSON API. 250 API requests/month
Mobile Development
Nx Cloud
Nx Cloud speeds up your monorepos on CI with features such as remote caching, distribution of tasks across machines and even automated splitting of your e2e test runs. It comes with a free plan for up to 30 contributors with generous 150k credits included.
CI/CD
OCR.Space
An OCR API parses image and pdf files that return the text results in JSON format. 25,000 requests per month are free and a 1MB file size limit.
Other
octomind.dev
Auto-generated, run and maintained Playwright UI tests with AI-assisted test case generation
Developer Tools
Octopus.do
Visual sitemap builder. Build your website structure in real time and rapidly share it to collaborate with your team or clients.
Design
okso.app
Minimalistic online drawing app. Allows to create fast sketches and visual notes. Exports sketches to PNG, JPG, SVG, and WEBP. Also installable as PWA. Free to use for everyone (no registration is needed).
Design
Okta
User management, authentication and authorization. Free for up to 100 monthly active users.
Security
OneCompiler
Free online compiler supporting 70+ languages including Java, Python, C++, JavaScript.
Developer Tools
onelogin.com
Identity as a Service (IDaaS), Single Sign-On Identity Provider, Cloud SSO IdP, 3 company apps and 5 personal apps, unlimited users
Security
OnlineExifViewer
View EXIF data online instantly for a photo including GPS location and metadata.
Other
OnlineGDB
A free online ide thats supports 40+ languages and is pre installed with tons of libraries; and also has a debugging option, flags, tutorials, and a QNA page!
Developer Tools
OnlineInterview.io
Free code interview platform with embedded video chat, drawing board, and online code editor where you can compile and run your code on the browser. You can create a remote interview room with just one click.
Productivity
OnlineOrNot.com
OnlineOrNot provides uptime monitoring for websites and APIs, monitoring for cron jobs and scheduled tasks. Also provides status pages. The first five checks with a 3-minute interval are free. The free tier sends alerts via Slack, Discord, and Email.
Monitoring
OntarioNet.ca CN Test
Check if a website is blocked in China by the Great Firewall. It identifies DNS pollution by comparing DNS results and ASN information detected by servers in China versus servers in the United States.
Monitoring
opbeat.com
Instant performance insights for JS developers. Free with 24 hours data retention
Analytics
openapi.security
Free tool to quickly check the security of any OpenAPI / Swagger-based API. You don't need to sign up.
Security
opencagedata.com
Geocoding API aggregating OpenStreetMap and other open geo sources. Two thousand five hundred free queries/day.
Analytics
OpenReplay.com
Open-source session replay with dev tools for bug reproduction, live session for real-time support, and product analytics suite. One thousand sessions/month with access to all features and 7-day retention.
Analytics
OpenRouter
Provides various free AI models including DeepSeek R1, V3, Llama, and Moonshot AI. These models excel in natural language processing and are suitable for diverse development needs. Note that while these models are free to use, they are subject to rate limits. Additionally, OpenRouter offers paid models for more advanced requirements, for instance Claude, OpenAI, Grok, Gemini, and Nova.
AI & Machine Learning
opsdash.com
Self-hoster server, clusters and services monitoring, free for 5 servers and 5 services
Analytics
opsgenie.com
Powerful alerting and on-call management for operating always-on services. Free up to 5 users.
Monitoring
opswat.com
Security Monitoring of computers, devices, applications, configurations, Free 25 users and 30 days history users.
Security
opswatgears.com
Security Monitoring of computers, devices, applications, configurations,... Free 25 users and 30 days history
Security
optimizely.com
A/B Testing solution, free starter plan, 1 website, 1 iOS and 1 Android app
Analytics
Ora
Agile task management & team collaboration. Free for up to 3 users and files are limited to 10 MB.
Productivity
Orama Cloud
Free 3 indexes, 100K docs/index, unlimited full-text/vector/hybrid searches, 60 days analytics
API Tools
Orbisearch
Free bulk email validator, 100 validations per day, no signup required.
Email Services
Ory
AuthN/AuthZ/OAuth2.0/Zero Trust managed security platform. Forever free developer accounts with all security features, unlimited team members, 200 daily active users, and 25k/mo permission checks.
Security
Osano
Consent management and compliance platform with everything from GDPR representation to cookie banners. The free tier offers basic features.
Security
OSDN
OSDN.net is a free-of-charge service for open-source software developers, offering SVN/Git/Mercurial/Bazaar/CVS repositories.
Developer Tools
Othor AI
An AI-native fast, simple, and secure alternative to popular business intelligence solutions like Tableau, Power BI, and Looker. Othor utilizes large language models (LLMs) to deliver custom business intelligence solutions in minutes. The Free Forever plan provides one workspace with five datasource connections for one user, with no limits on analytics. [#opensource]
AI & Machine Learning
otixo.com
Encrypt, share, copy and move all your cloud storage files from one place. Basic plan provides unlimited files transfer with 250 MB max. file size and allows 5 encrypted files
Content Creation
Otterwatch
Daily SSL/TLS certificate monitoring: expiry alerts (30/7/1 day), chain and OCSP revocation checks, and certificate transparency issuance history. Free forever for 5 domains, no credit card.
Other
outsystems.com
Enterprise web development PaaS for on-premise or cloud, free "personal environment" offering allows for unlimited code and up to 1 GB database
Web Development
Ownkube
Free single-node k3s in your own AWS account, run apps, databases, workers with a git push. Use your AWS credits at peak efficiency.
Cloud Computing
packagecloud.io
Hosted Package Repositories for YUM, APT, RubyGem and PyPI. Limited free plans, open source plans available via request
Content Creation
paessler.com
Powerful infrastructure and network monitoring solution, including alerting, strong visualization capabilities, and basic reporting. Free up to 100 sensors.
Monitoring
Page Flows
[Mobile / web videos and screenshots] Videos of full flows across many mobile and web apps. Also includes screenshots. Highly searchable and indexed.
Design
pagegym.com
Load behvariour and page speed analysis and optimization tool. The free plan provides 10 tests per day, 5 experiments per week, and 15 GB of maximum ingested data per month.
Developer Tools
pageradar.io
Monitor Core Web Vitals, SEO changes, and uptime for your websites. Free plan includes 5 URLs, daily Core Web Vitals monitoring, 10 HTML/SEO change monitors, 167-country affiliate link monitoring, and email alerts.
Monitoring
pagerly.io
Manage on-calls on Slack (integrates with Pagerduty, OpsGenie). Free up to 1 team
Monitoring
pagertree.com
Simple interface for alerting and on-call management. Free up to 5 users.
Monitoring
Pages
Develop and deploy your web apps on Cloudflare's fast, secure global network. Five hundred monthly builds, 100 custom domains, Integrated SSL, unlimited accessible seats, unlimited preview deployments, and full-stack capability via Cloudflare Workers integration.
Cloud
PageShare.dev
Adds visual review capabilities into GitHub Pull Requests with no need to deploy websites. Free for up to 10 pages each month and 100MB of storage in total.
Productivity
PageTools
Offers a suite of forever free AI-powered tools to help you generate essential website policies, create social media bios, posts and web pages with a simple one-click interface.
Other
Pagure.io
Pagure.io is a free and open source software code collaboration platform for FOSS-licensed projects, Git-based
Developer Tools
Paiza
Develop Web apps in Browser without needing to set up anything. Free Plan offers one server with 24 24-hour lifetime and 4 hours of running time per day with 2 CPU cores, 2 GB RAM, and 1 GB storage.
Developer Tools
PandaStack
An eco-system for developers includes web hosting in different formats (static web hosting, container based web hosting, wordpress and so many other managed apps available in couple of clicks ). One free web hosting (static or containered) and one free database with 100GB Bandwidth and 300 Build mins/month.
Hosting
pantheon.io
Drupal and WordPress hosting, automated DevOps and scalable infrastructure. Free for developers and agencies
Web Development
paperspace
Build & scale AI models, Develop, train, and deploy AI applications, free plan: public projects, 5Gb storage, basic instances.
Developer Tools
paraio.com
Backend service API with flexible authentication, full-text search and caching. Free for one app, 1GB of app data.
Backend
ParityVend
Automatically adjust pricing based on visitor location to expand your business globally and reach new markets (purchasing power parity). The free plan includes 7,500 API requests/month.
Payments
parsehub.com
Extract data from dynamic sites, turn dynamic websites into APIs, 5 projects free
Development
parsers.dev
Abstract syntax tree parsers and intermediate representation compilers as a service
Developer Tools
Pastefy
Beautiful and simple Pastebin with optional Client-Encryption, Multitab-Pastes, an API, a highlighted Editor and more.
Productivity
Patr Cloud
An easy-to-use cloud platform, among its paid services it offers to host three static sites for free.
Hosting
pawnmail.com
2 GB free email hosting across unlimited users for custom domain. Roundcube webmail, POP3, IMAP and SMTP access. No paid plans or upgrades
Business
PDF-API.io
PDF Automation API, visual template editor or HTML to PDF, dynamic data integration, and PDF rendering with an API. The free plan comes with one template, 100 PDFs/month.
Other
PDFBolt
Developer-focused PDF generation API designed with privacy in mind. It offers Stripe-inspired documentation and includes 500 free PDF conversions per month.
Other
pdfEndpoint.com
Effortlessly convert HTML or URLs to PDF with a simple API. One hundred conversions per month for free.
Other
PDFMonkey
Manage PDF templates in a dashboard, call the API with dynamic data, and download your PDF. Offers 300 free documents per month.
Other
Peasy
Peasy is a lightweight, privacy-focused analytics tool for websites and products. Free plan includes 3,000 events per month.
Analytics
Pendulums
Pendulums is a free time tracking tool that helps you manage your time in a better manner with an easy-to-use interface and valuable statistics.
Productivity
pepipost.com
Unlimited emails free for first three months, then first 25,000 emails/month free
Business
percy.io
Add visual testing to any web app, static site, style guide, or component library. Unlimited team members, Demo app, and unlimited projects, 5,000 snapshots/month.
Developer Tools
Permit.io
Auhtorization-as-a-service provider platform enabling RBAC, ABAC, and ReBAC for scalable microservices with real-time updates and a no-code policy UI. A 1000 Monthly Active User free tier.
Security
pexels.com
Free stock photos for commercial use. Has a free API that allows you to search photos by keywords.
Design
PhantomJsCloud
Browser automation and page rendering. Free Tier offers up to 500 pages/day. Free Tier since 2017.
API Tools
phare.io
Uptime Monitoring free for up to 100,000 events for unlimited projets and unlimited status pages.
Monitoring
Phase Two
Keycloak Open Source Identity and Access Management. Free realm up to 1000 users, up to 10 SSO connections, leveraging Phase Two's Keycloak enhanced container which includes the extension.
Security
photopea.com
A Free, Advanced online design editor with Adobe Photoshop UI supporting PSD, XCF & Sketch formats (Adobe Photoshop, Gimp and Sketch App).
Design
PHPhub
A collection of PHP tools, including a formatter, validator, sandbox, regex tester, and more.
Other
pijul.com
Unlimited free and open source distributed version control system. Its distinctive feature is based on a sound theory of patches, which makes it easy to learn, use, and distribute. Solves many problems of git/hg/svn/darcs.
Developer Tools
Pika Code Screenshots
Create beautiful, customizable screenshots from code snippets and VSCode using the extension.
Other
Pinata IPFS
Pinata is the simplest way to upload and manage files on IPFS. Our friendly user interface and IPFS API make Pinata the easiest IPFS pinning service for platforms, creators, and collectors. 1 GB storage free, along with access to API.
Storage
pingbreak.com
Modern uptime monitoring service. Check unlimited URLs and get downtime notifications via Discord, Slack, or email.
Monitoring
Pinggy
Public URLs for localhost with a single command, no downloads required. HTTPS / TCP / TLS tunnels. The free plan has 60 minutes tunnel lifetime.
Infrastructure
Pingmeter.com
5 uptime monitors with 10-minute interval. Monitor SSH, HTTP, HTTPS, and any custom TCP ports.
Monitoring
pingpong.one
Advanced status page platform with monitoring. The free tier includes one public customizable status page with an SSL subdomain. Pro plan is offered to open-source projects and non-profits free of charge.
Monitoring
Pingram.io
Communication infrastructure in 5 minutes. Free tier includes: 100 SMS and calls, 3000 Emails, Push, Slack, MS Teams, WhatsApp, and more.
Communication
pipedream.com
An integration platform built for developers. Develop any workflow based on any trigger. Workflows are code you can run. No server or cloud resources to manage.
Cloud
pixee.ai
Automated Product Security Engineer as a free GitHub bot that submits PRs to your Java code base to automatically resolve vulnerabilities. Other languages coming soon!
Security
Pixela
Free daystream database service. All operations are performed by API. Visualization with heat maps and line graphs is also possible.
Other
placekitten.com
A quick and simple service for getting pictures of kittens for use as placeholders
Content Creation
plan.io
Project Management with Repository Hosting and more options. Free for two users with ten customers and 500MB Storage
Productivity
Plane
Plane is a simple, extensible, open-source project and product management tool. Free for unlimited members, up to 5MB file upload size, 1000 issues.
Productivity
Plasmic
A fast, easy-to-use, robust web design tool and page builder that integrates into your codebase. Build responsive pages or complex components; optionally extend with code; and publish to production sites and apps.
Design
platform.telerik.com
Build and deploy mobile applications using JavaScript. Free plan has 100 MB data storage, 1 GB file storage, 5 GB bandwidth, 1 million push notifications for BaaS offering, 100 active devices for analytics
Web Development
ploi.io
Server management tool to easily manage and deploy your servers & sites. Free for one server.
Productivity
plot.ly
Graph and share your data. Free tier includes unlimited public files and 10 private files
Content Creation
PNG to WebP Converter
Convert PNG images to WebP images directly in your browser. No upload required, fully client-side processing for maximum privacy and security.
Design
Pocket Alert
Send push notifications to your iOS and Android devices. Effortlessly integrate via API or Webhooks and maintain full control over your alerts. Free plan: 50 messages per day to 1 device and 1 application.
Communication
podio.com
You can use Podio with a team of up to five people and try out the features of the Basic Plan, except users management
Content Creation
point.poker
Online Planning Poker (consensus-based estimation tool). Free for unlimited users, teams, sessions, rounds, and votes. You don't need to register.
Productivity
Poliigon
Free and paid textures (with variable resolution), models, HDRIs, and brushes. Offers free plugins to export to software like Blender.
Developer Tools
Pollinations.AI
easy-to-use, free image generation AI with free API available. No signups or API keys required, and several option for integrating into a website or workflow. [#opensource]
AI & Machine Learning
Portkey
Control panel for Gen AI apps featuring an observability suite & an AI gateway. Send & log up to 10,000 requests for free every month.
AI & Machine Learning
positionstack
Free geocoding for global places and coordinates. 25,000 Requests per month for personal use.
Analytics
PostHog
Full Product Analytics suite free for up to 1m tracked events per month. Also provides unlinited in-App Surveys with 250/month responses.
Analytics
Posthook
Schedule webhooks to fire at a future time with automatic retries, delivery tracking, and failure alerting. Free plan includes 1,000 webhooks per month.
Other
Postman
Simplify workflows and create better APIs – faster – with Postman, a collaboration platform for API development. Use the Postman App for free forever. Postman cloud features are also free forever with certain limits.
Other
PostPulse
Boost your online presence, enhance your SEO and site ranking with monthly AI-crafted posts to SEO-optimized domains The free Plan allows you to manually publish one Post on our site every month.
Other
Pravatar
Generate a random/placeholder fake avatar whose URL can be directly hot-linked in your web/app.
Design
PrefectCloud
A complete platform for dataflow automation. Free plan includes 5 deployed workflows and 500 minutes of serverless compute credits per month.
Other
Prepros
Prepros can compile Sass, Less, Stylus, Pug/Jade, Haml, Slim, CoffeeScript, and TypeScript out of the box, reloads your browsers and makes it easy to develop & test your websites so you can focus on making them perfect. You can also add your own tools with just a few clicks.
Developer Tools
Preset Cloud
A hosted Apache Superset service. Forever free for teams of up to 5 users, featuring unlimited dashboards and charts, a no-code chart builder, and a collaborative SQL editor.
Other
Prisma Postgres
Super fast hosted Postgres built on unikernels and running on bare metal, 1GB storage, 10 databases, integrated with Prisma ORM.
Database
Prismic
Headless CMS. Content management interface with fully hosted and scalable API. The Community Plan provides unlimited API calls, documents, custom types, assets, and locales to one user. Everything that you need for your next project. Bigger free plans are available for Open Content/Open Source projects.
CMS
Prismix
Free REST API (GET /api/v1/statuses) returning real-time operational status for 75+ AI services including OpenAI, Anthropic, Gemini, Mistral, and more. No authentication required. [Free tier available with Pro at $10/month]
Monitoring
producteev.com
Task management tool. Free, premium version with more options. Mobile applications available
Productivity
Project Gatekeeper
An All-in-One SSL Toolkit Offering various features like Private Key & CSR Generator, SSL Certificate Decoder, Certificate Matcher and Order SSL Certificate. We offer the users to generate Free SSL Certificates from Let's Encrypt, Google Trust and BuyPass using CNAME Records rather than TXT Records.
Security
projectlocker.com
One free private project (Git and Subversion) with 50 MB of space
Developer Tools
PromptLoop
PromptLoop delivers 10X easier AI web scraping with near-zero adoption time, 85%+ time saved on existing workflows, and operates 4X faster than manual research without compromise and includes a REST API endpoint for all research tasks. The first 1,000 credits are free each month.
Other
PropelAuth
A Sell to companies of any size immediately with a few lines of code, free up to 200 users and 10k Transactional Emails (with a watermark branding: "Powered by PropelAuth").
Security
Protectumus
Free website security check, site antivirus, and server firewall (WAF) for PHP. Email notifications for registered users in the free tier.
Security
Proto.io
Create fully interactive UI prototypes without coding. The free tier is available when the free trial ends. The free tier includes one user, one project, five prototypes, 100MB of online storage, and a preview of the proto.io app.
Design
Proton Drive
Ultra-secure cloud storage for files and key documents. Free plan offers 5gb of storage space.
Other
Proton Mail
Free secure email account service provider with built-in end-to-end encryption. Free 1GB storage.
Communication
Proton Pass
Password manager with built-in email aliases, 2FA authenticator, sharing and passkeys. Available on web, browser extension, and mobile app and desktop.
Productivity
ProxySentry
IP API that detects residential proxies and VPNs. ProxySentry.io offers a free tier with 10k requests per month on rapidapi.com.
Other
pterocos
a free opensource browser-based coding environment for front-end developers. write html, css and js with a vs code-grade editor (monaco), live preview, scss/typeScript/babel support, and an ai chat assistant for debugging and suggestions. all projects save to local storage. free forever – no account needed.
Developer Tools
Public Cloud Threat Intelligence
High confidence Indicator of Compromise(IOC) targeting public cloud infrastructure, A portion is available on github (https://github.com/unknownhad/AWSAttacks). Full list is available via API
Security
pubnub.com
Free push notifications for up to 1 million messages/month and 100 active daily devices
Database
Pullflow
Pullflow offers an AI-enhanced platform for code review collaboration across GitHub, Slack, and VS Code.
Productivity
pullreview.com
Automated Code Review for Ruby in GitHub, Bitbucket and GitLab, free for Open Source
Development
Pulsetic
10 monitors, 6 Months of historical Uptime/Logs, unlimited status pages, and custom domains included! For infinite time and unlimited email alerts for free. You don't need a credit card.
Monitoring
Pulumi
Modern infrastructure as a code platform that allows you to use familiar programming languages and tools to build, deploy, and manage cloud infrastructure.
Cloud
pushcrew.com
Push notification service. Unlimited notifications for up to 2,000 Subscribers
Backend
pusher.com
Hosted Web Sockets broker. Free for up to 20 simultaneous connections and 100,000 messages/day
Web Development
pythonanywhere.com
Cloud Python app hosting. Beginner account is free, 1 Python web application at your-username.pythonanywhere.com domain, 512 MB private file storage, one MySQL database
Web Development
pyup.io
Monitory Python dependencies for security vulnerabilites and update them automatically. Free for one private project, unlimited projects for open source.
Security
qase.io
Test management system for Dev and QA teams. Manage test cases, compose test runs, perform tests, track defects, and measure impact. The free tier includes all core features, with 500MB available for attachments and up to 3 users.
Developer Tools
Qdrant
Vector Database for embedding data, single node cluster with 0.5 vCPU, 1GB RAM, and 4GB disk.
Database
Qoddi
PaaS service similar to Heroku with a developer-centric approach and all-inclusive features. Free tier for static assets, staging, and developer apps.
Hosting
Qonversion
All-in-one cross-platform subscription management platform offering analytics, A/B testing, Apple Search Ads, remote configs, and growth tools for optimizing in-app purchases and monetization. Compatible with iOS, Android, React Native, Flutter, Unity, Cordova, Stripe, and web. Free up to $10k in monthly tracked revenue.
API Tools
QRCodeBest
Create custom QR codes with 13 templates, full privacy, and personal branding. Features tracking pixels, project categorization, and unlimited team seats on QRCode.Best.
Other
QRME.SH
Fast, beautiful bulk QR code generator – no login, no watermark, no ads. Up to 100 URLs per bulk export.
Storage
QRtracer
Free QR code generator with built-in scan analytics, bulk generation & brand customisation, focused on reliability without any ads.
Other
Qualli
In App Surveys, designed for mobile. Use Qualli AI to craft the perfect questions. You can try it out on our free plan, up to 500 MAU, create unlimited forms and triggers.
Productivity
Qualtrics Survey
Create professional forms & survey using this first class tool. 50+ expert-designed survey templates. Free Account has a limit of 1 active survey, 100 responses/survey & 8 response types.
Productivity
Quant Ux
Quant Ux is a prototyping and design tool. - It's completely free and also open source.
Design
Queuemail.dev
Reliable email delivery API. Free tier (10,000 emails/per month). Send asynchronously. Use several SMTP servers. Blocklists, Logging, Tracking, Webhooks, and more.
Communication
quickblox.com
A communication backend for instant messaging, video and voice calling and push notifications
Database
QuickEmailVerification
Verify 100 emails daily for free on a free tier along with other free APIs like DEA Detector, DNS Lookup, SPF Detector, and more.
Communication
QuickType.io
Quickly auto-generate models/class/type/interface and serializers from JSON, schema, and GraphQL for working with data quickly & safely in any programming language. Convert JSON into gorgeous, typesafe code in any language.
Other
Quidlo Timesheets
A simple timesheet and time tracking app for teams. The free plan has time tracking and generating reports features for up to 10 users.
Productivity
R2
10 GB per month, 1 million Class A operations per month, 10 million Class B operations per month
Cloud
Radmin VPN
Connect multiple computers together via a VPN-enabling LAN-like network. Unlimited peers.
Infrastructure
Raindrop.io
Private and secure bookmarking app for macOS, Windows, Android, iOS, and Web. Free Unlimited Bookmarks and Collaboration.
Productivity
RandomKeygen
A free mobile-friendly tool that offers a variety of randomly generated keys and passwords you can use to secure any application, service, or device.
Other
Rapidapi
World’s Largest API Hub Millions of developers find and connect to thousands of APIs, API Development using fun challenges (with solutions!) and interactive examples.
Other
raw.githack.com
A modern replacement of **rawgit.com** which simply hosts file using Cloudflare
CDN
rawgit.com
Free limited traffic, serves raw files directly from GitHub with proper Content-Type headers
Web Development
RDS
750 hours per month of db.t2.micro, db.t3.micro, or db.t4g.micro, 20GB of General Purpose (SSD) storage, 20GB of storage backups
Cloud
Reactflow.com
Per site: 1,000 pages views/day, three heatmaps, three widgets, free bug tracking
Analytics
Reactive Resume
Free, open-source resume builder with dozens of templates. Exports to PDF, DOCX and also provides a publicly shareable link to the resume (opt-in).
Education
readthedocs.org
Free documentation hosting with versioning, PDF generation and more
Web Development
reappt.io
Realtime Messaging for browsers, smartphones and everyone. 100 concurrent connections. Free 10 GB data/month
Database
RedHat for Developers
Free access to Red Hat products including RHEL, OpenShift, CodeReady, etc. exclusively for developers. Individual plan only. Free e-books are also offered for reference.
Other
redirect.pizza
Easily manage redirects with HTTPS support. The free plan includes 10 sources and 100,000 hits per month.
Other
RedirHub
API-first URL redirect infrastructure with custom nameservers, edge network, HTTPS, and proactive link monitoring. Free plan includes 2 hostnames, 100K requests per month, auto-SSL, path forwarding, and REST API access.
Other
redirs.com
Easy domain redirects with auto-SSL, analytics, and URL path forwarding. Free for basic use (up to 5 domains).
Other
redsmin.com
Online real-time monitoring and administration service for Redis, 1 Redis instance free
Database
Reducto
Turn any unstructured documents (PDF, XLSX, JPG, PPTX, etc.) into structured JSON data. Parse, extract data, and edit PDF forms. Free tier with 15k free credits and pay-as-you-go.
Other
Refero
[Web screenshots] Tagged and searchable collection of design references from great web applications.
Design
regex101
Free this website allows you to test and debug regular expressions (regex). It provides a regex editor and tester, as well as helpful documentation and resources for learning regex.
Other
Remarkbox
Open source hosted comments platform, pay what you can for "One moderator on a few domains with complete control over behavior & appearance"
Communication
Renamer.ai
AI-powered file renaming tool with OCR, metadata extraction, and automation for 20+ languages. Free tier: 15 files/month, including desktop app, batch rename, auto-rename, and normal support.
Other
render.com
Unified cloud to build and run apps and sites with free SSL, a global CDN, private networks, auto-deploys from Git, and completely free plans for web services, databases, and static web pages.
Hosting
Rendi
FFmpeg API - A REST API for FFmpeg, run FFmpeg online without handling the infrastructure. Free tier with monthly processing quota and 4 vCPUs available.
Other
RepoFlow
RepoFlow Simplifies package management with support for npm, PyPI, Docker, Go, Helm, and more. Try it for free with 10GB storage, 10GB bandwidth, 100 packages, and unlimited users in the cloud, or self-hosted for personal use only.
Developer Tools
RepoForge
Private cloud-hosted repository for Python, Debian, NPM packages and Docker registries. Free plan for open source/public projects.
Developer Tools
Repohistory
Beautiful dashboard for tracking GitHub repo traffic history longer than 14 days. Free Plan allows users to monitor traffic for a single repository.
Analytics
ReportGPT
AI Powered Writing Assistant. The entire platform is free as long as you bring your own API key.
AI & Machine Learning
ReqBin
Post HTTP Requests Online. Popular Request Methods include GET, POST, PUT, DELETE, and HEAD. Supports Headers and Token Authentication. Includes a basic login system for saving your requests.
Other
RequestBin.com
Create a free endpoint to which you can send HTTP requests. Any HTTP requests sent to that endpoint will be recorded with the associated payload and headers so you can observe recommendations from webhooks and other services.
Other
Resend
Transactional emails API for developers. 3,000 emails/month, 100 emails/day free, one custom domain.
Communication
resmush.it
reSmush.it is a FREE API that provides image optimization. reSmush.it has been implemented on the most common CMS such as WordPress, Drupal, or Magento. reSmush.it is the most used image optimization API with more than seven billion images already treated, and it is still Free of charge.
Storage
Responsively App
A free dev tool for faster and more precise responsive web application development.
Design
restdb.io
a fast and straightforward NoSQL cloud database service. With restdb.io you get schema, relations, automatic REST API (with MongoDB-like queries), and an efficient multi-user admin UI for working with data. The free plan allows 3 users, 2500 records, and 1 API request per second.
Database
restlet.com
APISpark enables any API, application or data owner to become an API provider in minutes via an intuitive browser interface
Development
restspace.io
Configure a server with services for auth, data, files, email API, templates, and more, then compose into pipelines and transform data.
Backend
ReTool
Low-code platform for building internal applications. Retool is highly hackable. If you can write it with JavaScript and an API, you can make it in Retool. The free tier allows up to five users per month, unlimited apps and API connections.
Developer Tools
Revdoku
Publish files, reports, custom microsites right from ChatGPT, Claude, Codex and other AI agents as public or password-protected websites. Free tier: 2GB storage, 2 live sites/apps, 1 database (25 MB), 3 AI connections, 1k files/bucket (100 MB/file), basic analytics.
Hosting
RevenueCat
Hosted backend for in-app purchases and subscriptions (iOS and Android). Free up to $2.5k/mo in tracked revenue.
API Tools
Revolt.chat
An OpenSource alternative for, that respects your privacy. It also have most proprietary features from discord for free. Revolt is a all in one application that is secure and fast, while being 100% free. every features are free. They also have (official & unofficial) plugins support unlike most main-stream chatting applications.
Productivity
RightFeature
Easily collect feedback from your customers, turn customer feedback into your product roadmap. Collect, prioritize, and ship features that actually matter to your users.
Collaboration
RingCentral
Video meetings with a free plan offering 50 minutes per meeting with 100 participants.
Productivity
Rive
Create and ship beautiful animations to any platform. Free forever for Individuals. The service is an editor that also hosts all the graphics on their servers. They also provide runtimes for many platforms to run representations made using Rive.
Design
Rive
Community assets as well as create your own game assets using its free plan.
Developer Tools
Rivestack
Managed PostgreSQL with pgvector optimized for AI workloads. The free tier includes 2GB storage, daily snapshots, 14-day point-in-time recovery, and a built-in SQL editor that converts search queries to vector embeddings.
Database
Roadmap.sh
Free learning roadmaps covering all aspects of development from Blockchain to UX Design.
Education
robocorp.com
Open-source stack for powering Automation Ops. Try out Cloud features and implement simple automation for free. Robot work 240 min/month, 10 Assistant runs, Storage of 100 MB.
Productivity
Roboflow
create and deploy a custom computer vision model with no prior machine learning experience required. The free tier includes 30 credits per month.
Other
RoboMiri.com
RoboMiri is a stable uptime monitor that offers a wide range of monitors: cronjob, keyword, website, port, ping. Twenty-five uptime checks with 3-minute interval checks for free. Alerts via Phone Call, SMS, Email, and Webhooks.
Monitoring
robusta.dev
Powerful Kubernetes monitoring based on Prometheus. Bring your own Prometheus or install the all-in-one bundle. The free tier includes up to 20 Kubernetes nodes. Alerts via Slack, Microsoft Teams, Discord, and more. Integrations with PagerDuty, OpsGenie, VictorOps, DataDog, and many other tools.
Monitoring
Rocket.Chat
Open-source communication platform with Omnichannel features, Matrix Federation, Bridge with others apps, Unlimited messaging, and Full messaging history.
Productivity
RocketGit
Repository Hosting based on Git. Unlimited Public and private repositories.
Developer Tools
rollbar.com
Exception and error monitoring, free plan with 5,000 errors/month, unlimited users, 30 days retention
Development
Rollgate
EU-hosted feature flag management with scheduled releases, instant rollback, and A/B testing. 12 SDKs included. Free plan up to 500K API requests/month, unlimited flags, 3 team members, no credit card required.
Developer Tools
Row Zero
Blazingly fast, connected spreadsheet. Connect directly to data databases, S3, and APIs. Import, analyze, graph, and share millions of rows instantly. Three free (forever) workbooks.
Analytics
RowSafe
Database protection with backups, point-in-time recovery and restore tests. The $0 forever plan protects 1 server and 3 databases with 10 GB of RowSafe Storage; a RowSafe account is required. The agent, CLI and MCP server are Apache-2.0; the hosted platform is separate, and managed database cloud hosting is paid.
Database
runcloud.io
Server management focusing mainly on PHP projects. Free for up to 1 server.
Productivity
Runframe
On-call alerting, incident management, and public/private status pages. The free plan includes up to 5 users, 1 team, 1 on-call schedule, basic status pages, incident lifecycle, and Slack-native incident response.
Monitoring
RunMat
GPU-accelerated numerical computing IDE in the browser. Write and run MATLAB-syntax .m files with automatic GPU acceleration via WebAssembly and WebGPU. No install, no account, no license fees. Open source runtime with CLI, NPM package, and Jupyter kernel support.
Developer Tools
RunMyJob
Run GitHub Actions and GitLab CI pipelines smarter with real-time scaling Spike Instances. Free tier includes 400 vCPU-minutes, 800 GB-minutes, and 10 concurrent jobs with high-performance runners (12 vCPU and 32 GB RAM per job).
CI/CD
ruttl.com
The best all-in-one feedback tool to collect digital feedback and review websites, PDFs, and images.
Productivity
Rybbit
Open-source and cookieless alternative to Google Analytics that is 10x more intuitive. Free plans has 3,000 monthly events.
Analytics
Salesforce Developer Program
Build apps Lightning fast with drag-and-drop tools. Customize your data model with clicks. Go further with Apex code. Integrate with anything using powerful APIs. Stay protected with enterprise-grade security. Customize UI with clicks or any leading-edge web framework. Free Developer Program gives access to the full Lightning Platform.
Backend
sandstorm.io
Sandstorm is an open source operating system for personal and private clouds. Free plan offers 200 MB storage and 5 grains free
Web Development
Sanity.io
Platform for structured content with an open-source editing environment and a real-time hosted data store. Unlimited projects. Unlimited admin users, three non-admin users, two datasets, 500K API CDN requests, 10GB bandwidth, and 5GB assets included for free per project.
CMS
savannah.gnu.org
Serves as a collaborative software development management system for free Software projects
Developer Tools
savannah.nongnu.org
Serves as a collaborative software development management system for free Software projects
Developer Tools
scaledrone.com
Push messaging service. Free for up to 20 simultaneous connections and 100,000 messages/day
Web Development
Scalekit
Enterprise SSO (SAML, OIDC), SCIM provisioning, and social logins for B2B SaaS. Free tier includes 1 million MAU, 100 organizations, 1 SSO connection, and 1 SCIM connection.
Other
scalingo.com
Primarily a PaaS but offers a 512 MB free tier of MySQL, PostgreSQL or MongoDB
Database
scalr.com
Scalr is a Terraform Automation and COllaboration (TACO) product used to better collaboration and automation on infrastructure and configurations managed by Terraform. Full Terraform CLI support, OPA integration, and a hierarchical configuration model. No SSO tax. All features are included. Use up to 50 runs/month for free.
Cloud
scan.coverity.com
Static code analysis for Java, C/C++, C# and JavaScript, free for Open Source
Development
SceneLab
Online mockup graphics editor with an ever-expanding collection of free design templates
Design
scinote.net
Scientific data management and team collaboration. One Team with unlimited number of users, backup and 1 GB storage space
Productivity
scn.sap.com
The in-memory Platform-as-a-Service offering from SAP. Free developer accounts come with 1 GB structured, 1 GB unstructured, 1 GB of Git data and allow you to run HTML5, Java and HANA XS apps
Web Development
Scraper's Proxy
Simple HTTP proxy API for scraping. Scrape anonymously without having to worry about restrictions, blocks, or captchas. First 100 successful scrapes per month free including javascript rendering (more available if you contact support).
Other
ScrapingAnt
Headless Chrome scraping API and free checked proxies service. Javascript rendering, premium rotating proxies, CAPTCHAs avoiding. Free 10,000 API credits.
Other
scrapinghub.com
Data scraping with visual interface and plugins. Free plan includes unlimited scraping on a shared server
Development
ScrapX
Monitor for any visual or textual change in a target website and data extraction. Free plan allows upto 5 URLs a month.
Other
Screeb
In-app surveys and product analytics for decoding user behavior. Forever free plan allows 500 monthly active users, unlimited responses and events, many integrations, export, and periodic reports.
Productivity
Screen Sharing via Browser
Free screen sharing tool, share your screen with collabrators right from your browser, no download or registration needed. For free.
Productivity
Screenlane
[Mobile screenshots] Get inspired and keep up with the latest web & mobile app UI design trends. Filterable by pattern and app.
Design
Screenshot Scout
Screenshot API for developers. Clean, production-ready screenshots from any URL in one request. Free plan includes 200 screenshots per month, forever.
API Tools
ScreenshotAPI.net
Screenshot API uses a straightforward API call to generate screenshots of any website. Built to scale and hosted on Google Cloud. Offers 100 free screenshots per month.
API Tools
screenshotbase.com
300 free screenshots / month. Take screenshots from any url. Fast, free & scalable.
API Tools
screenshotlayer.com
Capture highly customizable snapshots of any website. Free 100 snapshots/month
Productivity
screenshotmachine.com
Capture 100 snapshots/month, png, gif and jpg, including full-length captures, not only home page
Productivity
scrnshts
[Mobile screenshots] A hand-picked collection of the finest app store design screenshots.
Design
seafile.com
Private or cloud storage, file sharing, sync, discussions. Private version is full. Cloud version has just 1 GB
Productivity
SeaTable
Flexible, Spreadsheet-like Database built by the Seafile team. unlimited tables, 2,000 lines, 1-month versioning, up to 25 team members.
Database
seclookup.com
Seclookup APIs can enrich domain threat indicators in SIEM, provide comprehensive information on domain names, and improve threat detection & response. Get 50K lookups free.
Security
section.io
A simple way to spin up and manage a complete Varnish Cache solution. Supposedly free forever for one site
Web Development
segment.com
Hub to translate and route events to other third party services. 100,000 events/month free
Web Development
Select Star
is an intelligent data discovery platform that automatically analyzes and documents your data. Free light tier with 2 Data Source, up to 1,000 Tables and 25 Users.
Other
Seline
Seline is a simple & private website and product analytics. Cookieless, lightweight, independent. Free plan includes 3,000 events per month and provides access to all our features, such as the dashboard, user journeys, funnels, and more.
Analytics
Sema
Free developer portfolio tool able to consolidate and snapshot contributions across multiple repositories into a single report.
Productivity
semanticdiff.com
Programming language aware diff for GitHub pull requests and commits, free for public repositories
Developer Tools
SendBridge Mail Tester
Free email deliverability test with no signup. Generates a unique inbox address, then analyzes SPF, DKIM, DMARC, Rspamd spam score, 23+ RBL blacklists, reverse DNS, and content quality. Unlimited tests, results in seconds, shareable report pages.
Email Services
SendStreak
Email framework as a service, that adds templates, automations, history, etc to your own SMTP server (E.g. AWS, Maileroo, Gmail). Free up to 100 emails/day, no time limit.
Email Services
sensenet
API-first headless CMS providing enterprise-grade solutions for businesses of all sizes. The Developer plan provides three users, 500 content items, three built-in roles, 25+5 content types, fully accessible REST API, document preview generation, and Office Online editing.
CMS
sentry.io
Sentry tracks app exceptions in real-time, has a small free plan. Free, unrestricted use if self-hosted
Development
seotest.me
Free on-page SEO website tester. 10 free website crawls per day. Useful SEO learning resources and recommendations on how to improve the on-page SEO results for any website regardless of technology.
Developer Tools
SerpApi
Real-time search engine scraping API. Returns structured JSON results for Google, YouTube, Bing, Baidu, Walmart, and many other machines. The free plan includes 100 successful API calls per month.
Other
Serv00.com
3 GB of free web hosting with daily backups (7 days). Support: Crontab jobs, SSH access, repositories (GIT, SVN, and Mercurial), support: MySQL, PostgreSQL, MongoDB, PHP, Node.js, Python, Ruby, Java, Perl, TCL/TK, Lua, Erlang, Rust, Pascal, C, C++, D, R, and many more.
Hosting
serveo
Expose local servers to the internet. No installation, no signup. Free subdomain, no limits.
Infrastructure
serveravatar.com
Manage and monitor PHP-based web servers with automated configurations. Free for one server.
Productivity
Servervana
Advanced uptime monitoring with support for large projects and teams. Provides HTTP monitoring, Browser based monitoring, DNS monitoring, domain monitoring, status pages and more. The free tier includes 10 HTTP monitors, 1 DNS monitor and one status page.
Monitoring
Sflow
sflow.io is a project management tool built for agile software development, marketing, sales, and customer support, especially for outsourcing and cross-organization collaboration projects. Free plan up to 3 projects and five members.
Productivity
ShadcnUI
- Beautifully designed components that you can copy and paste into your apps. Accessible. Customizable. Open Source.
Design
Shake
In-app bug reporting and feedback tool for mobile apps. Free plan, ten bug reports per app/month.
Productivity
Sheetson
Instantly turn any Google Sheets into a RESTful API. Free plan available, including 1,000 free rows per sheet.
Other
Shipvela
Hosting for React, Vite and static websites from GitHub or a CLI. The ongoing free Hobby plan includes 3 projects and 20 publishes per month, with custom domains and managed HTTPS; no credit card is required.
Hosting
Shotstack
API to generate and edit video at scale. Free up to 20 minutes of rendered video per month
Storage
SiftingIO
Real-time REST/WebSocket and historical market data for US stocks/ETFs, forex, commodities and crypto. Client SDKs are MIT-licensed; API access and data are separately licensed.
API Tools
SikkerAPI
Free IP Reputation & Threat Intelligence, powered by a globally distributed high interaction honeypot network and community reported abuse incidents. 1,000 free IP lookups, TAXII indicators & reports per day, pull 5,000 fresh IPs from our blacklists daily and monitor your own CIDR ranges (/16) free free.
Other
SikkerKey
Machine authenticated secrets manager, includes 2 projects, 2 bootstrapped machines, 20 secrets and 7 days audit log retention for free.
Other
Simfinity.js
Apache-2.0 Node.js library that generates GraphQL queries, CRUD mutations, relationships, filters and pagination from object type definitions. Supports PostgreSQL and MongoDB/Mongoose, with optional MCP tools. Free to use in your own application; hosting and database costs are separate.
Developer Tools
Similar Web
Analytics for Web & Mobile Apps. Free Plan offers five results per metric, one month of mobile app data & 3 months of website data.
Analytics
simperium.com
Move data everywhere instantly and automatically, multi-platform, unlimited sending and storage of structured data, max. 2,500 users/month
Database
Simple Observability
Powerful server monitoring in a unified platform for metrics and logs, with no setup complexity. Free for one server.
Monitoring
SimpleBackups.com
Backup automation service for servers and databases (MySQL, PostgreSQL, MongoDB) stored directly into cloud storage providers (AWS, DigitalOcean, and Backblaze). Provides a free plan for 1 backup.
Other
SimpleLocalize
Free up to 100 translation keys, unlimited strings, unlimited languages, startup deals
Productivity
SimpleLogin
Open source, self-hostable email alias/forwarding solution. Free 10 Aliases, unlimited bandwidth, unlimited reply/send. Free for educational staff (student, researcher, etc.).
Email Services
SimplePDF.eu
Embed a PDF editor on your website and turn any PDF into a fillable form. The free plan allows unlimited PDFs with three submissions per PDF.
Productivity
SimpleRestore
Hassle-free MySQL backup restoration. Restore MySQL backups to any remote database without code or a server.
Other
Simplescraper
Trigger your webhook after each operation. The free plan includes 100 cloud scrape credits.
Other
sirv.com
Smart Image CDN with on-the-fly image optimization and resizing. The free tier includes 500 MB of storage and 2 GB of bandwidth.
Storage
SiteDots
Share feedback for website projects directly on your website, no emulation, canvas or workarounds. Completely functional free tier.
Productivity
sitemonki.com
Website, domain, Cron & SSL monitoring, 5 monitors in each category for free
Monitoring
Siterelic
Siterelic API lets you take screenshots, audit websites, TLS scan, DNS lookup, test TTFB, and more. The free plan offers 100 API requests per month.
Other
Skypack
The 100% Native ES Module JavaScript CDN. Free for 1 million requests per domain per month.
CDN
skyvia.com
Cloud Data Platform, offers free tier and all plans are completely free while in beta
Database
SlingSite
Create all the optimized versions of your images and videos. For Free. In bulk. For each image, you get the following formats: AVIF, WEBP and JPG in the three selected resolutions (desktop, tablet, mobile) For videos, you get: WebM (codec VP9), MP4 (codec HEVC aka H.265) and MP4 (codec AVC aka H.264) plus the cover image with the first frame.
Other
SmallDev.tools
A free tool for developers that allows you to Encode/Decode various formats, Minify HTML/CSS/Javascript, Beautify, Generate Fake/Testing datasets in JSON/CSV & multiple other formats and many more features. With a delightful interface.
Other
Smart Grow Logs
Centralized log management platform with end-to-end encryption, real-time alerts, and multi-platform SDKs. Free tier includes up to 3.000 logs per day.
Monitoring
Smart Grow Vault
Secure Enterprise-grade platform for managing environment variables and secrets. Free tier includes up to 3 applications and 150 secrets per project.
Other
Smartcar API
An API for cars to locate, get fuel tank, battery levels, odometer, unlock/lock doors, etc.
Other
smartforms.dev
Powerful and easy form backend for your website, forever free plan allows 50 submissions per month, 250MB file storage, Zapier integration, CSV/JSON export, custom redirect, custom response page, Telegram & Slack bot, single email notifications.
Productivity
smartlook.com
free packages for web and mobile apps (1500 sessions/month), three heatmaps, one funnel, 1-month data history
Analytics
SmartParse
SmartParse is a data migration and CSV to API platform that offers time- and cost-saving developer tools. The Free tier includes 300 Processing Units per month, Browser uploads, Data quarantining, Circuit breakers, and Job Alerts.
Other
SMSGate
SMS Gateway for Android™ enables sending and receiving SMS messages through your devices using cloud routing. Completely free cloud service (with recommended notification for usage above 10,000 messages/day to maintain quality for all users).
Communication
SnapAPI
Screenshot, video recording, PDF generation, and web data extraction API. Free plan includes 200 screenshots/month.
API Tools
snappify
Enables developers to create stunning visuals. From beautiful code snippets to fully fletched technical presentations. The free plan includes up to 3 snaps at once with unlimited downloads and 5 AI-powered code explanations per month.
Other
SnapShooter
Backup solution for DigitalOcean, AWS, LightSail, Hetzner, and Exoscale, with support for direct database, file system and application backups to s3 based storage. Provides a free plan with daily backups for one resource.
Other
snippets.uilicious.com
It's like CodePen but for cross-browser testing. UI-licious lets you write tests like user stories and offers a free platform - UI-licious Snippets - that allows you to run unlimited tests on Chrome with no sign-up required for up to 3 minutes per test run. Found a bug? You can copy the unique URL to your test to show your devs exactly how to reproduce the bug.
Developer Tools
snyk.io
Snyk found and reported several vulnerabilities in the package.Limited to 1 private project (unlimited for open source projects)
Security
Socket
Free supply chain security for individual developers, small teams, and open source projects. Includes a free app and firewall CLI tool to protect your code from vulnerable and malicious dependencies. Detects 70+ indicators of supply chain risk.
Security
Sofodata
Create secure RESTful APIs from CSV files. Upload a CSV file and instantly access the data via its API allowing faster application development. The free plan includes 2 APIs and 2,500 API calls per month. You don't need a credit card.
Other
Solo
Free AI website creator from Mozilla, create a beautiful website for your business from a few simple inputs. Free custom domain, no credit card needed.
CMS
SoloLearn
A cloud programming playground well-suited for running code snippets. Supports various programming languages. No registration is required for running code, but it is necessary when saving code on their platform. Also offers free courses for beginners and intermediate-level coders.
Developer Tools
sonarcloud.io
Automated source code analysis for Java, JavaScript, C/C++, C#, VB.NET, PHP, Objective-C, Swift, Python, Groovy and even more languages, free for Open Source
Developer Tools
sonarqube.com
Automated source code analysis for Java, JavaScript, C/C++, C#, VB.NET, PHP, Objective-C, Swift, Python, Groovy and even more languages, free for Open Source
Development
SOOS
Free, unlimited SCA scans for open-source projects. Detect and fix security threats before release. Protect your projects with a simple and effective solution.
Security
sourcegraph.com
Java, Go, Python, Node.js, etc., code search/cross-references, free for Open Source
Development
SourceLevel
Automated Code Review and Team Analytics. Free for Open Source and organizations up to 5 collaborators.
Developer Tools
Spacelift
Management platform for Infrastructure as Code. Free plan features: IaC collaboration, Terraform module registry, ChatOps integration, Continuous resource compliance with Open Policy Agent, SSO with SAML 2.0, and access to public worker pools: up to 200 minutes/month
CI/CD
speeder.io
Uses KeyCDN. Automatic image optimization and free CDN boost. Free and does not require any server changes
Web Development
Sprig
1 In-Product Survey or Survey with Replay per month, with GPT-powered AI Analysis.
Productivity
Sqlable
A collection of free online SQL tools, including an SQL formatter and validator, SQL regex tester, fake data generator, and interactive database playgrounds.
Other
Squadcast.com
Squadcast is an end-to-end incident management software designed to help you promote SRE best practices. Free forever plan available for up to 10 users.
Monitoring
Squash Labs
creates a VM for each branch and makes your app available from a unique URL, Unlimited public & private repos, Up to 2 GB VM Sizes.
CI/CD
Squidex
Offers free tier for small projects. API / GraphQL first. Open source and based on event sourcing (versing every change automatically).
CMS
srcclr.com
SourceClear to scan source code for vulnerabilities, multi-languages and OS
Development
sslip.io
Free DNS service that when queried with a hostname with an embedded IP address returns that IP address.
Infrastructure
SSOJet
Add Enterprise SSO Without Rebuilding Your Auth. The free plan includes unlimited monthly active users, unlimited organizations, 2 SSO & 2 SCIM connections.
Security
SSR (Server-side Rendering) Checker
Check SSR (server-side rendering) for any URL by visually comparing the server rendered version of the page with the regular version.
Developer Tools
Stack Auth
Open-source authentication that doesn't suck. The most developer-friendly solution, getting you started in just five minutes. Self-hostable for free, or offers a managed SaaS version with 10k free Monthly Active Users.
Security
stackblitz.com
Online/Cloud Code IDE to create, edit, & deploy full-stack apps. Support any popular NodeJs-based frontend & backend frameworks. Shortlink to create a new project:.
Developer Tools
StackBy
One tool that combines spreadsheets' flexibility, databases' power, and built-in integrations with your favorite business apps. The free plan includes unlimited users, ten stacks, and a 2GB attachment per stack.
Database
stackhut.com
Async task processing (like AWS Lambda). 10 free private services and unlimited free public services
Database
Stacks
Content workspace with integrated notes, links, and file storage to navigate information overload. Forever free personal plan.
Productivity
stackstorm.com
Event-driven automation for apps, services and workflows, free without flow, access control, LDAP,...
Database
stadiamaps.com
Map tiles, routing, navigation, and other geospatial APIs. Two thousand five hundred free map views and API requests/day for non-commercial usage and testing.
Analytics
stamplay.com
Connect services together with a visual interface. 50,000 API calls, 100 GB data transfer and 1 GB storage for free
Database
StatCounter
Website Viewer Analytics. Free plan for analytics of 500 most recent visitors.
Analytics
Static Web Apps
Build, deploy, and host static apps and serverless functions with free SSL, Authentication/Authorization, and custom domains
Cloud
statically.io
CDN for Git repos (GitHub, GitLab, Bitbucket), WordPress-related assets, and images
CDN
staticforms.xyz
Integrate HTML forms easily without any server-side code for free. After the user submits the form, an email with the form content will be sent to your registered address.
Productivity
Statsig
A robust platform for feature management, A/B testing, analytics, and more. Its generous free plan offers unlimited seats, flags, experiments, and dynamic configurations, supporting up to 1 million events per month.
Developer Tools
Statsig
All-in-one platform spanning across analytics, feature flagging, and A/B testing. Free for up to 1m metered events per month.
Analytics
StatusPile
A status page of status pages. Could you track the status pages of your upstream providers?
Productivity
Stellate
Stellate is a blazing-fast, reliable CDN for your GraphQL API and free for two services.
CDN
stepFORM.io
Quiz and Form Builder. The free plan has five forms, up to 3 steps per form, and 50 monthly responses.
Productivity
Stickies
Visual collaboration app used for brainstorming, content curation, and notes. Free for up to 3 Walls, unlimited users, and 1 GB storage.
Productivity
Stoplight
Saas for collaboratively designing and documenting for APIs. The free plan offers free design, mocking, and documentation tools.
Other
Storyblok
A Headless CMS for developers and marketers that works with all modern frameworks. The Community (free) tier offers Management API, Visual Editor, ten sources, Custom Field Types, Internationalization (unlimited languages/locales), Asset Manager (up to 2500 assets), Image Optimizing Service, Search Query, Webhook + 250GB Traffic/month included.
CMS
storyset.com
Create incredible free customized illustrations for your project using this tool.
Design
StreamBackdrops
Free HD virtual backgrounds for video calls and team meetings. Professional backgrounds for Zoom, Teams, and Google Meet. No signup required, free for personal use.
Productivity
Stytch
An all-in-one platform that provides APIs and SDKs for authentication and fraud prevention. The free plan includes 10,000 monthly active users, unlimited organizations, 5 SSO or SCIM connections, and 1,000 M2M tokens.
Security
Sublime Text
Sublime Text is a popular, versatile, and highly customizable text editor used for coding and text editing tasks.
Developer Tools
sumome.com
Heat map and conversion enhancement tools, free without few advanced features
Mobile Development
Supabase
The Open Source Firebase Alternative to build backends. Free Plan offers Authentication, Realtime Database & Object Storage.
Backend
supaguard.app
Synthetic monitoring from 20+ global regions. The free tier includes 1,000 browser checks/mo with AI-driven self-healing and automated test generation.
Monitoring
Superblocks
Open enterprise application platform designed for developers and semi-technical teams. Use AI to generate, edit visually and extend with code. Govern centrally with integrations, authentication, permissions & audit logs.
Developer Tools
Superdesigner
A collection of free design tools to create unique backgrounds, patterns, shapes, images, and more with just a few clicks.
Design
superfeedr.com
Real-time PubSubHubbub compliant feeds, export, analytics. Free with less customization
Productivity
superlog.sh
Open-source OpenTelemetry observability (traces, logs, and metrics) with AI-agent incident investigation. The free tier includes 1M spans, 5M logs, and 10M metric points per month with 30-day retention, no credit card required. Fully open-source and self-hostable.
Monitoring
Supermaven
Supermaven is a fast AI code completion plugin for VSCode, JetBrains, and Neovim. Free tier provides unlimited inline completions.
AI & Machine Learning
SuperTokens
Open source user authentication that natively integrates into your app - enabling you to get started quickly while controlling the user and developer experience. Free for up to 5000 MAUs.
Security
Supportivekoala
Allows you to autogenerate images by your input via templates. The free plan allows you to create up to 50 images per month.
Other
SuprSend
SuprSend is a notification infrastructure that streamlines your product notifications with an API-first approach. Create and deliver transactional, crons, and engagement notifications on multiple channels with a single notification API. In free plan you get 10,000 notifications per month, including different workflow nodes such as digests, batches, multi-channels, preferences, tenants, broadcasts and more.
Communication
surge.sh
Static web publishing for Front-End developers. Unlimited sites with custom domain support
Web Development
SurveyMonkey.com
Create online surveys. Analyze the results online. The free plan allows only 10 questions and 100 responses per survey.
Other
Survicate
Pull feedback from all sources and send follow-up surveys with one tool. Automatically analyze feedback and extract insights with AI. Free email, website, in-product or mobile surveys, AI survey creator, and 25 monthly responses.
Productivity
SVGmix.com
Massive repository of 300K+ of free SVG icons, collections, and brand logos. It has a simple vector editing program right in the browser for quick file editing.
Design
svgrepo.com
Explore, search, and find the best-fitting icons or vectors for your projects using various vector libraries. Download free SVG Vectors for commercial use.
Design
SweetUptime
Server monitoring, uptime monitoring, DNS & domain monitoring. Monitor 10 server, 10 uptime, and 10 domain for free.
Monitoring
swiftype.com
Hosted search solution (API and crawler). Free for a single search engine with up to 1,000 documents. Free upgrade to premium level for Open Source
Development
synadia.com
as a service. Global, AWS, GCP, and Azure. Free forever with 4k msg size, 50 active connections, and 5GB of data per month.
Communication
Table Format Converter
A free tool to convert table data to different formats, such as CSV, HTML, JSON, Markdown and more.
Other
Tableau Developer Program
Innovate, create, and make Tableau work perfectly for your organization. The free developer program gives a personal development sandbox license for Tableau Online. The version is the latest pre-release version so Data Devs can test each & every feature of this superb platform.
Analytics
tabnine.com
Tabnine helps developers create better software faster by providing insights learned from all the code in the world. Plugin available.
AI & Machine Learning
tachikoma.io
Dependency Update for Ruby, Node.js, Perl projects, free for Open Source
Development
tadpoledb.com
IDE in browser Database tool. Support Amazon RDS, Apache Hive, Apache Tajo, CUBRID, MariaDB, MySQL, Oracle, SQLite, MSSQL, PostgreSQL and MongoDB databases
Development
Tadum
Meeting agenda and minutes app designed for recurring meetings, free for teams of up to 10
Productivity
taiga.io
Project management platform for startups and agile developers, free for Open Source
Productivity
Tailark
A collection of modern, responsive, pre-built UI blocks designed for marketing websites.
Design
Tailcolors
- A beautiful Tailwind CSS v4 color palette. Instantly preview & copy the perfect Tailwind CSS color class.
Design
Tailkits
- A curated collection of Tailwind templates, components, and tools, plus useful generators for code, grids, box shadows, and more.
Design
Tailscale
Zero config VPN, using the open-source WireGuard protocol. Installs on MacOS, iOS, Windows, Linux, and Android devices. Free plan for personal use with 100 devices and three users.
Infrastructure
Takeout
A constantly updated email service that makes sending emails easy. Five hundred transactional emails/month free.
Communication
Tale
Open-source project workspace for teams and AI agents with task boards, shared files, agent workspaces, and deliverable review. MIT-licensed software is free to self-host; hosting and model-provider costs are separate.
Collaboration
talky.io
Free group video chat. Anonymous. Peer‑to‑peer. No plugins, signup, or payment required
Productivity
Tally.so
99% of all the features are free. The free tier lets you have: unlimited forms, unlimited submissions, email notifications, form logic, collect payments, file upload, custom thank you page, and many more.
Productivity
Tara AI
Simple sprint management service. The free plan has unlimited tasks, sprints, and workspaces without user limits.
Productivity
targetprocess.com
Visual project management, from Kanban and Scrum to almost any operational process. Free for unlimited users, up to 1,000 data entities {[more details](http://www.targetprocess.com/pricing/)}
Productivity
taskade.com
Real-time collaborative task lists and team outlines. The free plan has one workspace with unlimited tasks and projects; 1GB file storage; 1-week project history; and five attendees per video meeting.
Productivity
taskulu.com
Role based project management. Free up to 5 users. Integration with GitHub/Trello/Dropbox/Google Drive
Productivity
Tavily AI
API for online serach and rapid insights and comprehensive research, with the capability of organization of research results. 1000 request/month for the Free tier with No credit card required.
Other
taxratesapi.avalara.com
Get the right sales tax rates to charge for the close to 10,000 sales tax jurisdictions in the USA. Free REST API. Registration required
Business
Teamcamp
All-in-one project management application for software development companies.
Productivity
Teamhood
Free Project, Task, and Issue-tracking software. Supports Kanban with Swimlanes and full Scrum implementation. Has integrated time tracking. Free for five users and three project portfolios.
Productivity
Teaminal
Standup, retro, and sprint planning tool for remote teams. Free for up to 15 users.
Productivity
Teamplify
improve team development processes with Team Analytics and Smart Daily Standup. Includes full-featured Time Off management for remote-first teams. Free for small groups of up to 5 users.
Productivity
teamwork.com
Project management & Team Chat. Free for five users and two projects. Premium plans are available.
Productivity
Tefter
Bookmarking app with a powerful Slack integration. Free for open-source teams.
Productivity
Telegram
Telegram is for everyone who wants fast, reliable messaging and calls. Business users and small teams may like the large groups, usernames, desktop apps, and powerful file-sharing options.
Productivity
TeleportHQ
Low-code Front-end Design & Development Platform. TeleportHQ is the collaborative front-end platform to instantly create and publish headless static websites. Three free projects, unlimited collaborators, and free code export.
Design
teleretro.com
Simple and fun retrospective tool with icebreakers, gifs and emojis. The free plan includes three retros and unlimited members.
Productivity
TeleType
share terminals, voice, code, whiteboard, and more. no sign-in is required for end-to-end encrypted collaboration for developers.
Productivity
temp-mail.io
Free disposable temporary email service with multiple emails at once and forwarding
Communication
Temp-Mail.org
Temporary / Disposable Mail Gen Utilizing a range variety of domain. Email Address refreshes everytime, the page is reloaded. It is entirely free and does not include any pricing for their services.
Communication
TemplateFox
PDF generation API with a visual template editor, dynamic data merging, and SDKs for 7 languages. Free plan includes 60 PDFs/month and 3 templates.
Other
TempMailDetector.com
Verify up to 200 emails a month for free and see if an email is temporary or not.
Communication
Tencent RTC
Tencent Real-Time Communication (TRTC) offers solutions for group audio/video calls.10,000 free minutes/month for the first year.
Productivity
Tenzu
Lightweight project management tool for agile teams. The SaaS relies on free contributions; users can always choose to give 0 and there is no features paywall {}
Productivity
TerminusCMS
Managed free service for TerminusDB, a document and graph database written in Prolog and Rust. Free for dev, paid service for enterprise deployments and support.
Database
terraform.io
Terraform Cloud. Free remote state management and team collaboration for up to 500 resources.
Cloud
Terramate
Terramate is an orchestration and management platform for Infrastructure as Code (IaC) tools such as Terraform, OpenTofu, and Terragrunt. Free up to 2 users including all features.
CI/CD
terrastruct.com
Online diagram maker specifically for software architecture. Free tier up to 4 layers per diagram.
Productivity
Terrateam
GitOps-first Terraform automation with pull request-driven workflows, project isolation via self-hosted runners, and layered runs for ordered operations. Free for up to 3 users.
CI/CD
testanywhere.co
Automatic test website or web app continuously and catch bugs in the early stages, free 1,000 tests/month
Development
TestApp.io
Your go-to platform for ensuring your mobile apps work as they should. Free plan: one app, analytics, unlimited versions & installs, and feedback collection.
Developer Tools
TestCollab
A user-friendly test management software, its free plan includes Jira integration, unlimited projects, test case import using CSV/XLSx, time tracking, and 1 GB file storage.
Developer Tools
testlio.com
Issue tracking, test management and beta testing platform. Free for private use
Productivity
Testspace.com
A Dashboard for publishing automated test results and a Framework for implementing manual tests as code using GitHub. The service is and accounts for 450 monthly results.
Developer Tools
TestTLS.com
Test an SSL/TLS service for secure server configuration, certificates, chains, etc. Not limited to HTTPS.
Security
tesults.com
Test results reporting and test case management. Integrates with popular test frameworks. Open Source software developers, individuals, educators, and small teams getting started can request discounted and free offerings beyond basic free projects.
Developer Tools
The IP API
IP Geolocation API with 1000 free requests / day. Provides information about the location of an IP address, including country, city, region, and more.
Other
The Odin Project
Free, open-source platform with a curriculum focused on JavaScript and Ruby for web development.
Education
Themeselection
Selected high quality, modern design, professional and easy-to-use Free Admin Dashboard Template,
Other
thousandeyes.com
Network and user experience monitoring. 3 locations and 20 data feeds of major web services free
Analytics
threatconnect.com
Threat intelligence: It is designed for individual researchers, analysts and organizations who are starting to learn about cyber threat intelligence. Free up to 3 Users
Security
tickgit.com
Surfaces `TODO` comments (and other markers) to identify areas of code worth returning to for improvement.
Developer Tools
TiDB Cloud
TiDB is an open-source MySQL-compatible distributed HTAP RDBMS. TiDB Serverless provides 5GB of row storage, 5GB of column storage, and 50 million Request Units (RUs) for free each month.
Database
TigerGraph Cloud
Managed native Graph DBMS / analytics platform with a SQL-like graph query language and a REST API. One free instance with two vCPU, 8GB Memory, and 50GB storage that sleeps after 1 hour of inactivity.
Database
tilda.cc
One site, 50 pages, 50 MB storage, only the main pre-defined blocks among 170+ available, no fonts, no favicon and no custom domain
Web Development
Tiledesk
Create chatbots and conversational apps. Bring them omnichannel: from your website (live chat widget) to WhatsApp. Free plan with unlimited chatbots.
Other
TimeCamp
Free time tracking software for unlimited users. Easily integrates with PM tools like Jira, Trello, Asana, etc.
Productivity
TinaCMS
Replacing Forestry.io. Open source Git-backed headless CMS that supports Markdown, MDX, and JSON. The basic offer is free with two users available.
CMS
Tinybird
A serverless managed ClickHouse with connection-less data ingest over HTTP and lets you publish SQL queries as managed HTTP APIs. There is no time limit on free-tier, 10GB storage + 1000 API requests per day.
Database
tinypng.com
API to compress and resize PNG and JPEG images, offers 500 compressions for free each month
Content Creation
titanapps.io
productivity tools for Jira and monday.com offering structured checklists, templates, and approvals inside issues/tasks. Free plan available for small teams.
Productivity
tldraw.com
Free open-source white-boarding and diagramming tool with intelligent arrows, snapping, sticky notes, and SVG export features. Multiplayer mode for collaborative editing. Free official VS Code extension available as well.
Productivity
todoist.com
Collaborative and individual task management. The free plan has: 5 active projects, five users in the project, file uploading up to 5MB, three filters, and one week of activity history.
Productivity
Toggl
Provides two free productivity tools. for time management and tracking app with a free plan provides seamless time tracking and reporting designed with freelancers in mind. It has unlimited tracking records, projects, clients, tags, reporting, and more. And for task planning with a free plan for solo developers with unlimited tasks, milestones, and timelines.
Productivity
Toggled.dev
Enterprise-ready, scalable multi-regional feature toggles management platform. Free plan up to 10 flags, two environments, unlimited requests. SDK, analytics dashboard, release calendar, Slack notifications, and all other features are included in the endless free plan.
Developer Tools
Tolgee
Free SaaS offering with limited translations, forever-free self-hosted version
Productivity
Tomorrow.io Weather API
Offers free plan of weather API. Provides accurate and up-to-date weather forecasting with global coverage, historical data and weather monitoring solutions.
Other
ToolJet
Extensible low-code framework for building business applications. Connect to databases, cloud storages, GraphQL, API endpoints, Airtable, etc., and build apps using drag-and-drop application builder.
Developer Tools
toranproxy.com
Proxy for Packagist and GitHub. Never fail CD. Free for personal use, 1 developer, no support
Web Development
TraceLog
AI Analytics for E-commerce. Ask questions in natural language about your analytics, get actionable recommendations and grow your revenue with AI-powered insights. Free for up to 10k events per month.
Other
Trackingplan
Automatically detect digital analytics, marketing data and pixels issues, maintain up-to-date tracking plans, and foster seamless collaboration. Deploy it to your production environment with real traffic or add analytics coverage to your regression tests without writing code.
Analytics
TrackWith Dicloud
Free lightweight privacy-focused alternative to Google Analytics. Unlimited pageviews, unlimited visitor, unlimited page heatmaps & goal tracking. Free for up to 3 domains and 600 session replay per domain.
Analytics
Traefik-Hub
Publish locally, running services over a tunnel to a public custom URL and secure them with access control. Free for 5 services in one cluster.
Infrastructure
Transcript LOL
Converts audio or video to text using AI. Generates summaries and other insights using LLMs. The free tier includes 2 transcriptions per day. You can upload files, record voice notes, or use links from YouTube, Instagram etc. The free version also supports WhatsApp, Telegram and importing files directly from cloud storages - Google Drive, Dropbox, Box and OneDrive. No API key needed. Sign up and ready to use. Also has apps for mobiles, desktops and chromebooks.
AI & Machine Learning
transfernow
simplest, fastest and safest interface to transfer and share files. Send photos, videos and other large files without a manditory subscription.
Productivity
Translized
Free up to 1000 strings, one user, unlimited languages, unlimited projects
Productivity
transloadit.com
Handles file uploads and encoding of video, audio, images, documents. Free for Open Source and other do-gooders. Commercial applications get 1 GB free for test driving
Content Creation
trashmail.com
Free disposable email addresses with forwarding and automatic address expiration
Communication
Treblle
Treblle helps teams build, ship, and govern APIs. With advanced API log aggregation, observability, docs, and debugging. You get all features for free, but there is a limit of up to 250k requests per month on the free tier.
Other
Trophy
API infrastructure for building gamification features like achievements, streaks, points and leaderboards in web and mobile apps. Free for 100 monthly active users.
Other
trystack.org
Free Openstack hosting. The environment is resets every 24 hours, suitable for testing only
Web Development
Tugboat
Preview every pull request, automated and on-demand. Free for all, complimentary Nano tier for non-profits.
Productivity
Turso by ChiselStrike
Turso is SQLite Developer Experience in an Edge Database. Turso provides a Free Forever starter plan, 9 GB of total storage, Up to 500 databases, Up to 3 locations, 1 billion row reads per month, and Local development support with SQLite.
Database
Tuta
Free secure email account service provider with built-in end-to-end encryption, no ads, no tracking. Free 1GB storage, one calendar (Tuta also have an.). Tuta is also partially, so you can self-host.
Communication
TW Elements
Free Bootstrap components recreated with Tailwind CSS, but with better design and more functionalities.
Design
tweakcn
Beautiful themes for shadcn/ui. Customize colors, typography, and more in real-time.
Design
twicpics.com
Responsive images as a service. It provides an image CDN, a media processing API, and a frontend library to automate image optimization. The service is free for up to 3GB of traffic/per month.
Storage
Twilio STUN
Twilio STUN server for WebRTC - Free STUN server at global.stun.twilio.com:3478
Web Development
twist.com
An asynchronous-friendly team communication app where conversations stay organized and on-topic. Free and Unlimited plans are available. Discounts are provided for eligible teams.
Productivity
tyk.io
API management with authentication, quotas, monitoring and analytics. Free cloud offering
Database
Typeform.com
Include beautifully designed forms on websites. The free plan allows only ten fields per form and 100 monthly responses.
Productivity
typetalk.com
Share and discuss ideas with your team through instant messaging on the web or your mobile
Productivity
typetalk.in
Share and discuss ideas with your team through instant messaging on the web or on your mobile
Productivity
Ubiq Security
Encrypt and decrypt data with three lines of code and automatic key management. Free for one application and up to 1,000,000 encryptions per month.
Security
UI Avatars
Generate avatars with initials from names. The URLs can be directly hot-linked in your web/app. Support config parameters via the URL.
Design
UI Bakery
Low-code platform that enables faster building of custom web applications. Supports building UI using drag and drop with a high level of customization through JavaScript, Python, and SQL. Available as both cloud and self-hosted solutions. Free for up to 5 users.
Developer Tools
Uiland Design
[Mobile screenshots] Explore Mobile and Web UI Designs from Leading Companies in Africa and the world.
Design
unDraw
A constantly updated collection of beautiful SVG images that you can use completely free without attribution.
Design
UniRateAPI
Real-time exchange rates for 590+ currencies and crypto. Unlimited API calls on the free plan, perfect for developers and finance apps.
Other
unsplash.com
Free stock photos for commercial and noncommercial purposes (do-whatever-you-want license).
Design
Updrafts.app
WYSIWYG website builder for tailwindcss-based designs. Free for non-commercial usage.
Design
uploadcare.com
Uploadcare provides the media pipeline with the ultimate toolkit based on cutting-edge algorithms. All features are available for developers absolutely for free: File Uploading API and UI, Image CDN and Origin Services, Adaptive Delivery, and Smart Compression. The free tier has 3000 uploads, 3 GB traffic, and 3 GB storage.
Storage
Upstash
Serverless Redis with free tier up to 500K monthly commands, 256MB max database size, and 20 concurrent connections
Database
UptimeObserver.com
Get 20 uptime monitors with 5-minute intervals and a customizable status page-even for commercial use. Enjoy unlimited, real-time notifications via email and Telegram. No credit card needed to get started.
Monitoring
uptimetoolbox.com
Free monitoring for five websites, 60-second intervals, public statuspage.
Monitoring
Uptrace
Distributed Tracing Tool that helps developers pinpoint failures and find performance bottlenecks. Has a free plan, offers a complimentary Personal subscription for open-source projects, and has an open-source version.
Analytics
usabilityhub.com
Test designs and mockups on real people, track visitors. Free for one user, unlimited tests
Analytics
UseCSV by Layercode
Add CSV and Excel import to your web app in minutes. Give your users an enjoyable and robust data import experience. Get Started for Free without any credit card details, and start integrating UseCSV today. You can create unlimited Importers and upload files up to 100Mb.
Other
Userbird
Google Analytics alternative with heatmaps, session recordings and revenue tracking.
Analytics
userforge.com
Interconnected online personas, user stories and context mapping. Helps keep design and dev in sync free for up to 3 personas and two collaborators.
Productivity
UseWebhook.com
Capture and inspect webhooks from your browser. Forward to localhost, or replay from history. Free to use.
Developer Tools
Utils.fun
All offline daily and development tools based on the browser's computing power, including watermark generation, screen recording, encoding and decoding, encryption and decryption, and code formatting, are completely free and do not upload any data to the cloud for processing.
Other
Utterances
A lightweight comments widget built on GitHub issues. Use GitHub issues for blog comments, wiki pages, and more!
Communication
UUID Generator
Generate UUID v1, UUID v4, UUID v7, GUID, Nil UUIDs, CUID v1/v2, NanoID, and ULID instantly with enterprise-grade
Other
UXtweak.com
Record and watch how visitors use your website or app. Free unlimited time for small projects
Analytics
v0.dev
v0 uses AI models to generate code based on simple text prompts. It generates copy-and-paste friendly React code based on shadcn/ui and Tailwind CSS that people can use in their projects. Each generation takes at minimum 30 credits. You start up with 1200 credits, and get 200 free credits every month.
AI & Machine Learning
v86
an x86 virtual machine capable of running Linux and other OS directly into the browser.
Other
Vaadin
Build scalable UIs in Java or TypeScript, and use the integrated tooling, components, and design system to iterate faster, design better, and simplify the development process. Unlimited Projects with five years of free maintenance.
Developer Tools
vaddy.net
Continuous web security testing with continuous integration (CI) tools. 3 domains, 10 scans history for free
Security
vadoo.tv
Video hosting and marketing made simple. Upload videos with a single click. Record, manage, share & more. The free tier provides up to 10 videos, 1 GB of storage, and 10 GB of bandwidth/per month
Productivity
VaocherApp QR Code Generator
Easily create custom QR codes for gift cards, gift vouchers, and promotions. Support custom styling, color, logo...
Other
vask
Realtime messaging service, Pusher-compatible. Dev tier is limited to local development only and free with 100 concurrent connections, 1,000,000 broadcasts/month, unlimited client events, 32kb message size.
Communication
vatlayer.com
Instant VAT number validation and EU VAT rates API, free 100 API requests/month
Business
vatnode
EU VAT number validation REST API with VIES and national tax-registry fallback, returning the official VIES consultation number for audit records. Free tier of 100 validations/month, no credit card.
Other
vector.express
Convert your AI, CDR, DWG, DXF, EPS, HPGL, PDF, PLT, PS and SVG vector fast and easily.
Design
Vercel
Build, deploy, and host web apps with free SSL, global CDN, and unique Preview URLs each time you `git push`. Perfect for Next.js and other Static Site Generators.
Hosting
Verifalia
Real-time email verification API with mailbox confirmation and disposable email address detector; 25 free email verifications/day.
Communication
veriphone
Global phone number verification in a free, fast, reliable JSON API. 1000 requests/month
API Tools
versioneye.com
Monitor your source code and notify about outdated dependencies. Free for Open Source and public repos
Development
Versionfeeds
Custom RSS feeds for releases of your favorite software. Have the latest versions of your programming languages, libraries, or loved tools in one feed.
Other
Versoly
SaaS-focused website builder - unlimited websites, 70+ blocks, five templates, custom CSS, favicon, SEO and forms. No custom domain.
Hosting
Vertopal
Vertopal is a free online platform for converting files to various formats. Including developer converters like JPG to SVG, GIF to APNG, PNG to WEBP, JSON to XML, etc.
Design
Vidhook
Collect feedback using delightful surveys with high response rates. Free plan includes 1 active survey, 25 responses per survey and customizable templates.
Productivity
Virgil Security
Tools and services for implementing end-to-end encryption, database protection, IoT security, and more in your digital solution. Free for applications with up to 250 users.
Security
Visual Studio Code
Code editor redefined and optimized for building and debugging modern web and cloud applications. Developed by Microsoft.
Developer Tools
Visual Studio Community
Fully-featured IDE with thousands of extensions, cross-platform app development (Microsoft extensions available for download for iOS and Android), desktop, web and cloud development, multi-language support (C#, C++, JavaScript, Python, PHP and more).
Developer Tools
Volume Shader BM
Free browser-based GPU benchmark (WebGL). Helps developers test and compare shader performance reproducibly across browsers and devices.
Other
VSCodium
Community-driven, without telemetry/tracking, and freely-licensed binary distribution of Microsoft’s editor VSCode
Developer Tools
Vulert
Vulert continuously monitors your open-source dependencies for new vulnerabilities, recommends fixes, without requiring installation or access to your codebase. Free for open-source projects.
Security
W3Schools
Offers free tutorials on web development technologies like HTML, CSS, JavaScript, and more.
Education
waffle.io
Board based project management solution from your existing GitHub Issues, free for Open Source
Productivity
Waitlio
Waitlist management software for product launches. Create branded waitlist pages, collect and verify email subscribers, manage signups with tags and analytics. Free plan includes 100 subscribers/month, 1 waitlist, and API access.
Email Services
WaiverStevie.com
Electronic Signature platform with a REST API. You can receive notifications with webhooks. Free plan watermarks signed documents but allow unlimited envelopes + signatures.
Productivity
wakatime.com
Quantified self metrics about your coding activity, using text editor plugins, limited plan for free
Development
walkme.com
Enterprise Class Guidance and Engagement Platform, free plan 3 walk-thrus up to 5 steps/walk
Design
Warrant
Hosted enterprise-grade authorization and access control service for your apps. The free tier includes 1 million monthly API requests and 1,000 authz rules.
Security
Wave Terminal
Wave is an open-source, cross-platform terminal for seamless workflows. Render anything inline. Save sessions and history. Powered by open web standards. MacOS and Linux.
Developer Tools
WeatherXu
Global weather data including current conditions, hourly and daily forecasts, and weather alerts via our API. Integrating AI models and ML systems to analyze and combine multiple weather models to deliver improved forecast accuracy. Free tier includes 10,000 API calls/month.
Other
Web.Dev
This is a free tool that allows you to see the performance of your website and improve the SEO to get a higher rank list in search engines.
Other
Web3Forms
Contact forms for Static & JAMStack Websites without writing backend code. The free plan allows Unlimited Forms, Unlimited Domains & 250 Submissions per month.
Productivity
Webacus
Access a wide range of free developer tools for encoding, decoding, and data manipulation.
Other
WebAsk
Survey and Form Builder. The free plan has three surveys per account, 100 monthly responses, and ten elements per survey.
Productivity
WebDB
Free Efficient Database IDE. Featuring Server Discovery, ERD, Data Generator, AI, NoSQL Structure Manager, Database Versioning and many more.
Developer Tools
Webex
Video meetings with a free plan offering 40 minutes per meeting with 100 attendees.
Productivity
Webflow
WYSIWYG website builder with animations and website hosting. Free for two projects.
Design
webhook-test.com
Debug and inspect webhooks and HTTP requests with a unique URL during integration. Completely free, you can create unlimited URLs and receive recommendations.
Developer Tools
webhook.site
Verify webhooks, outbound HTTP requests, or emails with a custom URL. A temporary URL and email address are always free.
Developer Tools
webhookbeam.com
Set up webhooks and monitor them via push notifications and emails.
Developer Tools
webhookrelay.com
Manage, debug, fan-out, and proxy all your webhooks to public or internal (i.e. localhost) destinations. Also, expose servers running in a private network over a tunnel by getting a public HTTP endpoint (`https://yoursubdomain.webrelay.io <----> http://localhost:8080`).
Infrastructure
weblate.org
It's free for libre projects with up to 10,000 string sources for the free tier and Unlimited Self-hosted on-premises.
Productivity
webpushr
Web Push Notifications - Free for upto 10k subscribers, unlimited push notifications, in-browser messaging
Communication
WebScraping.AI
Simple Web Scraping API with built-in parsing, Chrome rendering, and proxies. Two thousand free API calls per month.
Other
Webshrinker.com
Web Shrinker provides website screenshots and domain intelligence API services. Free 100 requests/month.
API Tools
Webstudio
- Open-source alternative to Webflow. The free plan offers unlimited websites on their domain. Five websites with custom domains. Ten thousand page views/month. 2 GB asset storage.
Design
Webvizio
Website feedback tool, website review software, and bug reporting tool for streamlining web development collaboration on tasks directly on live websites and web apps, images, PDFs, and design files.
Productivity
Weights & Biases
The developer-first MLOps platform. Build better models faster with experiment tracking, dataset versioning, and model management. Free tier for personal projects only, with 100 GB of storage included.
Other
What Is My IP
A free service to check your public IPv4 and IPv6 address and related request data through an API with different output formats for automation, scripts, and network troubleshooting.
Other
What The Diff
AI-powered code review assistant. The free plan has a limit of 25,000 monthly tokens (~10 PRs).
Other
whimsical.com
Collaborative flowcharts, wireframes, sticky notes and mind maps. Create up to 4 free boards.
Design
Whitespace
One-click bug reports straight in your browser. Free plan with unlimited recordings for personal use.
Monitoring
Wikifactory
Product designing Service with Projects, VCS & Issues. The free plan offers unlimited projects & collaborators and 3GB storage.
Productivity
Wikimint Developer
Always free tools for web developers that includes CSS minify unminify, image optimizer, image resizer, case convertor, CSS validator, JavaScript compiler, HTML editor, etc.
Other
windmill.dev
Windmill is an open-source developer platform to quickly build production-grade multi-step automation and internal apps from minimal Python and Typescript scripts. As a free user, you can create and be a member of at most three non-premium workspaces.
Productivity
WishKit
Collect in-app user feedback for your iOS/macOS app and prioritize features based on user votes. Free plan up to 1 app.
Productivity
wistia.com
Video hosting with viewer analytics, HD video delivery and marketing tools to help understand your visitors, 25 videos and Wistia branded player
Productivity
woopra.com
Free user analytics platform for 500K actions, 90-day data retention, 30+ one-click integration.
Analytics
Workers
Deploy serverless code for free on Cloudflare's global network-100k daily requests.
Cloud
Workers KV
100k read requests per day, 1000 write requests per day, 1000 delete requests per day, 1000 list requests per day, 1 GB stored data
Cloud
WorkOS
Free user management and authentication for up to 1 Million MAUs. Support email + password, social auth, Magic Auth, MFA, and more.
Security
wormhol.org
Straightforward file sharing service. Share unlimited files up to 5GB with as many peers as you want.
Productivity
Wormhole
Share files up to 5GB with end-to-end encryption for up to 24hours. For files larger than 5 GB, it uses peer-to-peer transfer to send your files directly.
Productivity
WPJack
Set up WordPress on any cloud in less than 5 minutes! The free tier includes 1 server, 2 sites, free SSL certificates, and unlimited cron jobs. No time limits or expirations-your website, your way.
CMS
WrapPixel
Download High Quality Free and Premium Admin dashboard template created with Angular, React, VueJs, NextJS, and NuxtJS!
Other
Wufoo
Quick forms to use on websites. The free plan has a limit of 100 submissions each month.
Productivity
WunderGraph
An open-source platform that allows you to quickly build, ship and manage modern APIs. Built-in CI/CD, GitHub integration, and automatic HTTPS. Up to 3 projects, 1GB egress, 300 minutes of build time per month on the [free plan]
Cloud
wunderlist.com
Share your lists and work collaboratively on projects with your colleagues, free on iPhone, iPad, Mac, Android, Windows and the web
Productivity
xcloud.host
Server management and deployment platform with a user-friendly interface. Free tier available for one server.
Productivity
Xirsys
Unlimited STUN usage + 500 MB monthly TURN bandwidth, capped bandwidth, single geographic region.
Infrastructure
Xitoring.com
Uptime monitoring: 20 free, Linux and Windows Server monitoring: 5 free, Status page: 1 free - Mobile app, multiple notification channel, and much more!
Monitoring
xLayers
Preview and convert Sketch design files into Angular, React, Vue, LitElement, Stencil, Xamarin, and more
Design
yammer.com
Private social network standalone or for MS Office 365. Free with a bit less admin tools and users management features
Productivity
Yandex.Datalens
Yandex Cloud data visualization and analysis service. The service is provided free of charge. No restrictions on the number of users and requests.
Analytics
YepCode
All-in-one platform to connect APIs and services in a serverless environment. It brings all the agility and benefits of NoCode tools but with all the power of using programming languages. The free tier includes.
Cloud
YourGPT CSV to JSON
A fast, free, and privacy-focused online tool to easily convert CSV files into structured JSON data right in your browser.
Other
YouTrack
Free hosted YouTrack (InCloud) for FOSS projects and private projects (free for three users). Includes time tracking and agile boards
Productivity
zapier.com
Connect the apps you use, to automate tasks. 5 zaps, every 15 minutes and 100 tasks/month
Database
Zeabur
Deploy your services with one click. Free for three services, with US$ 5 free credits per month.
Cloud
Zed
Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.
Developer Tools
zeit.co/now
Managed platform for Node.js deployments, featuring dynamic real-time scaling. Includes 20 free deploys/month limited to 1 GB storage and 1 GB bandwidth for OSS projects (source files are exposed on a public URL)
Web Development
Zeitio
Time tracking and invoicing for freelancers and small teams. Free plan includes 1 user, 3 active projects and 3 invoices per month.
Collaboration
Zenable
Instantly auto-fix outputs from tools like Cursor, Windsurf, and Copilot to meet your company's quality and compliance standards using guardrails built with Policy as Code. The free tier includes 100 tools calls per day to the MCP server and 25 free automated pull request reviews per day via the GitHub App.
AI & Machine Learning
zenduty.com
End-to-end incident management, alerting, on-call management, and response orchestration platform for network operations, site reliability engineering, and DevOps teams. Free for up to 5 users.
Monitoring
zenhub.com
The only project management solution inside GitHub. Free for public repos, OSS, and nonprofit organizations
Productivity
zenhub.io
The only project management solution inside GitHub. Free for public repos, OSS and nonprofit organizations
Productivity
zenkit.com
Project management and collaboration tool. Free for up to 5 members, 5 GB attachments.
Productivity
Zenscrape
Web scraping API with headless browsers, residentials IPs, and straightforward pricing. One thousand free API calls/month and extra credits for students and non-profits.
Other
Zeplin
Designer and developer collaboration platform. Show designs, assets and styleguides. Free for 1 project.
Design
Zerosheets
Turn your Google Sheets spreadsheets into powerful API`s to rapidly develop prototypes, websites, apps and more. 500 requests per month available for free.
Other
ZeroTier
FOSS managed virtual Ethernet as a service. Unlimited end-to-end encrypted networks of 25 clients on the free plan. Clients for desktop/mobile/NA; web interface for configuration of custom routing rules and approval of new client nodes on private networks
Infrastructure
Zip-Codes
REST API for US and Canadian postal codes with address validation, radius search, and Census demographics. 2,500 free requests/day.
Other
Zipcodebase
Free Zip Code API, access to Worldwide Postal Code Data. 5,000 free requests/month.
Other
Zipcodestack
Free Zip Code API and Postal Code Validation. Ten thousand free requests/month.
Other
ZITADEL Cloud
A turnkey user and access management that works for you and supports multi-tenant (B2B) use cases. Free for up to 25,000 authenticated requests, with all security features (no paywall for OTP, Passwordless, Policies, and so on).
Security
Zoho
Started as an e-mail provider but now provides a suite of services, some of which have free plans. List of services having free plans :
Communication
Zonomi
Free DNS hosting service with instant DNS propagation. Free plan: 1 DNS zone (domain name) with up to 10 DNS records.
Infrastructure
zoom.us
Secure Video and Web conferencing, add-ons available. Free limited to 40 minutes
Productivity
Zube
Project management with free plan for 4 Projects & 4 users. GitHub integration is available.
Productivity
Zulip
Real-time chat with a unique email-like threading model. The free plan includes 10,000 messages of search history and File storage up to 5 GB. also, it provides a self-hostable open-source version.
Productivity
Zuplo
Free API Management platform to design, build, and deploy APIs to the Edge. Add API Key authentication, rate limiting, developer documentation and Monetization to any API in minutes. OpenAPI-native and fully-programmable with web standard apis & Typescript. The free plan offers up to 10 projects, unlimited production edge environments, 1M monthly requests, and 10GB egress.
Other
Image to ASCII
Convert images into ASCII character art locally in the browser, with width, character-style and dithering controls and TXT, PNG and SVG exports. Free to use without an account.
Design
Easypanel
Self-hosted application deployment panel for Docker images, Docker Compose apps and databases on your own Linux server. The permanent free plan supports up to 3 projects, unlimited services and deployments, and basic monitoring. Server hosting costs are separate; the software is proprietary.
Infrastructure
Arcmira
Search indexed YouTube transcripts for timestamped passages through an API, MCP or SDKs. The permanent Free plan includes 1,000 credits per month without a card; newest 30 days, pagination and Premium transcripts require paid plans.
API Tools
Compare Two Lists
Compare two lists in your browser to find shared and unique items, preserving leading zeros.
Developer Tools
Orkas
Open-source desktop workspace where a Commander coordinates specialist agents and local coding CLIs to turn project requests into reviewable code changes. The core app is free; connect your own model provider, whose usage may incur charges.
Developer Tools
JSONViewerTool
Free browser tools for viewing, formatting, validating and comparing JSON, plus JSON string escaping and unescaping. No account required.
Developer Tools
WorkToolMap
Free directory for finding software and online tools by everyday work tasks, with concise profiles and source notes distinguishing public-information reviews from hands-on testing. Listed third-party tools have their own pricing.
Productivity
StudyArena
Compare three anonymous AI answers to a study question, vote, then reveal the models. The three-model comparison is free with an account; model choice and six-model comparisons require Supporter.
Education
ArtiGram
Free gallery where people and AI assistants publish interactive HTML artifacts such as calculators, data visualizations and games as live pages, with a remote MCP server
Content
Datacircle
Free API with no key to find the best GTM APIs: list every API, see who is best for each and search every plan
Developer Tools
Pic2Vector
Browser-based converter that traces PNG, JPG and WebP images into layered SVG using vtracer compiled to WebAssembly. Images are processed locally and never uploaded; SVG export is free with no account or watermark.
Design