All Tools
1,942 free developer tools, updated daily
3Dassets.one
Over 8,000 free/paid 3D models, and PBR materials for making textures.
Abstract API
API suite for various use cases, including IP geolocation, gender detection, or email validation.
acquia.com
Hosting for Drupal sites. Free tier for developers. Free development tools (such as Acquia Dev Desktop) also available
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.
AhaSend
Transactional email service, free for 1000 emails per month, with unlimited domains, team members, webhooks and message routes in the free plan.
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.
airtable.com
Looks like a spreadsheet, but it's a relational database, unlimited bases, 1,200 rows/base and 1,000 API requests/month
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.
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
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.
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.
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.
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.
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!
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.
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.
AnonAddy
Open-source anonymous email forwarding, create unlimited email aliases for free
Antideo
10 API requests per hour for email verification, IP, and phone number validation in the free tier. No Credit Cards are required.
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.
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.
Appish
Host Docker containers for demos with just a docker push. Free tier includes 1 slot with 2-hour sessions.
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
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.
Arize AI
Machine learning observability for model monitoring and root-causing issues such as data quality and performance drift. Free up to two models.
ArtStation
MarketPlace for Free/Paid 2D, 3D assets & audios, icons, tile sets, game kits. Also, It can be used for showcasing your art portfolio.
Arukas Cloud
Free docker container hosting, 10 during beta period, 3 afterwards (Japanese)
Aserto
Fine-grained authorization as a service for applications and APIs. Free up to 1000 MAUs and 100 authorizer instances.
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
Awardspace.com
Free web hosting + a free short domain, PHP, MySQL, App Installer, Email Sending & No Ads.
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.
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.
Beampipe.io
Beampipe is simple, privacy-focussed web analytics. free for up to 5 domains & 10k monthly page views.
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.
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.
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
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.
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.
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.
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.
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.
Brainboard
Collaborative solution to visually build and manage cloud infrastructures from end-to-end.
braintreepayments.com
Credit Card, Paypal, Venmo, Bitcoin, Apple Pay,... integration. Single and Recurrent Payments. First USD 50,000 free
Braintrust
Evals, prompt playground, and data management for Gen AI. Free plan gives upto 1,000 private eval rows/week.
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).
Browse AI
Extracting and monitoring data on the web. 1k credits per month for free, equals 1k concurrent requests.
BrowserCat
Headless browser API for automation, scraping, AI agent web access, image/pdf generation, and more. Free plan with 1k requests per month.
CacheFly
Up to 5 TB per month of Free CDN traffic, 19 Core PoPs , 1 Domain and Universal SSL.
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.
CatchJS.com
JavaScript error tracking with screenshots and click trails. Free for open-source projects.
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.
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.
Choreo
AI-native internal developer platform as a service. The free tier includes up to 5 components and $100 credits per month.
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.
Clarifai
Image API for custom face recognition and detection. Able to train AI models. The free plan has 1,000 calls per month.
clevebrush.com
Free Graphics Design / Photo Collage App. Also, they offer paid integration of it as a component.
clickup.com
Project management. Free, premium version with cloud storage. Mobile applications and Git integrations are available.
closeheat.com
Development Environment in the Cloud for Static Websites with Free Hosting and GitHub integration. 1 free website with custom domain support
cloudandheat.com
128 MB of RAM for free, includes support for custom domains for free
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.
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.
CloudMailin
Incoming email via HTTP POST and transactional outbound - 10,000 free emails/month
cloudrail.com
API integration solution. Unified interfaces for multiple web APIs, API change management
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
codenameone.com
Open source, cross-platform, mobile app development toolchain for Java/Kotlin developers. Free for commercial use with an unlimited number of projects
CodeNotary.io
Open Source platform with indelible proof to notarize code, files, directories, or container
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.
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.
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.
Cognitive Services
AI/ML APIs (Computer Vision, Translator, Face detection, Bots, etc) with free tier including limited transactions
Comet Opik
Evaluate, test, and ship LLM applications across your dev and production lifecycles. [#opensource]
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.
Composio
Integration platform for AI Agents and LLMs. Integrate over 200+ tools across the agentic internet.
Conduit
Turn incoming emails into webhooks to trigger your API from emails. The service is completely free.
Container Registry Service
Harbor based Container Management Solution. The free tier offers 1 GB of storage for private repositories.
context.io
Create simple email webhooks and code against a free, RESTful, imap API to leverage email data
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).
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.
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
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.
CraftPix
Free/Paid assets like 2D, 3D, Audio, GUI, backgrounds, icons, tile sets, game kits.
CurrencyFreaks
Provides current and historical currency exchange rates. Free DEVELOPER plan available with 1000 requests/month.
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.
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.
dafont
The fonts presented on this website are their authors' property and are either freeware, shareware, demo versions, or public domain.
DaisyUI
- Free. "Use Tailwind CSS but write fewer class names" offers components like buttons.
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.
Dataimporter.io
Tool for connecting, cleaning, and importing data into Salesforce. Free Plan includes up to 20,000 records per month.
Datalore
Python notebooks by Jetbrains. Includes 10 GB of storage and 120 hours of runtime each month.
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.
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.
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.
degoo.com
AI based cloud storage with free up to 20 GB, three devices, 5 GB referral bonus (90 days account inactivity).
DevNet Academy
Free, self-paced training for the Cisco DevNet Expert / CCIE Automation certification. Covers Python Click and Flask-RESTx.
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.
dkimvalidator.com
Test if the email's DNS/SPF/DKIM/DMARC settings are correct, free service by roundsphere.com
DNSExit
Up to 2 Email addresses under your domain for free with 100MB of storage space. IMAP, POP3, SMTP, SPF/DKIM support.
DNSHE
Free subdomain registration across multiple domain suffixes, with custom nameserver support.
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.
Docker Cloud
Manages the deployments of Docker containers to your (separate) cloud environment with one free repository
Domain Forward
A straightforward tool to forward any URL or Domain. Free up to 5 domains and 200k requests per month.
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.
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.
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.
duckdns.org
Free DDNS with up to 5 domains on the free tier. With configuration guides for various setups.
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.
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.
Efemarai
Testing and debugging platform for ML models and data. Visualize any computational graph. Free local use.
EmailGuard
Block disposable emails, catch typos, and validate MX records via a simple API. 100 free requests/month.
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.
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.
Emitlo
free 12,000 emails/month, Email API and SMTP, SPF/DKIM/DMARC support, No Credit Cards are required.
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.
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.
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.
eversql.com
EverSQL - The #1 platform for database optimization. Gain critical insights into your database and SQL queries automatically.
Expose
Expose local sites via secure tunnels. The free plan includes an EU Server, Random subdomains, and Single users.
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.
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.
filebase.com
S3 Compatible Object Storage Powered by Blockchain. 5 GB free storage for an unlimited duration.
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.
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.
FontsKey
Provides free and commercial paid fonts for personal use and can enter text for quick filtering.
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.
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.
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.
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.
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.
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.
formlets.com
Online forms, unlimited single page forms/month, 100 submissions/month, email notifications
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.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.
formspark.io
Form to Email service, free plan allows unlimited forms, 250 submissions per month, support by Customer assistance team.
Formspree.io
Send email using an HTTP POST request. The free tier limits to 50 submissions per form per month.
forwardemail.net
Free email forwarding for custom domains. Create and forward an unlimited amount of email addresses with your domain name
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.
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.
FreeIPAPI
Free, Fast and Reliable IP Geolocation API for commercial and non-commercial users available in JSON
FrontAid
Headless CMS that stores JSON content directly in your Git repository. No restrictions.
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
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!
Geokeo api
Geocoding API with language correction and more. Worldwide coverage. 2,500 free daily queries
get.localhost.direct
A better `*.localhost.direct` Wildcard public CA signed SSL cert for localhost development with sub-domain support
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.
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.
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.
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.
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.
haikei.app
Haikei is a web app to generate unique SVG shapes, backgrounds, and patterns – ready to use with your design tools and workflow.
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.
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.
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.
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.
huggingface.co
Build, train, and deploy NLP models for Pytorch, TensorFlow, and JAX. Free up to 30k input characters/mo.
hypercolor.dev
- A curated collection of Tailwind CSS color gradients also provides a variety of generators to create your own.
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.
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.
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.
Imitate Email
Sandbox Email Server for testing email functionality across build/qa and ci/cd. Free accounts get 15 emails a day forever.
imprace.com
Landing page analysis with suggestions to improve bounce rates. Free 5 landing pages/domain
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.
inboxkitten.com
Free temporary/disposable email inbox, with up to 3-day email auto-deletes. Open source and can be self-hosted.
InstallOnAir
Distribute iOS & Android apps over the air. Free plan: unlimited uploads, private links, 2-day expiration for guests, 60 days for registered users.
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.
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.
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.
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.
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.
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.
jare.io
You should login using your GitHub account and register your domain. Uses AWS CloudFront
jetbrains.com
Free hosted YouTrack (InCloud) for FOSS projects, private projects {[free for 10 users](https://www.jetbrains.com/youtrack/buy/)}
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.
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.
JustBlogged
Free blogging platform with custom domain support, and fast global performance.
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.
kanbantool.com
Kanban board based project management. Free, paid plans with more options
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).
keychest.net/speedtest
Independent speed test and TLS handshake latency test against Digital Ocean
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!
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.
Killer Coda
Interactive playground in your browser to study Linux, Kubernetes, Containers, Programming, DevOps, Networking
Kinsta Static Site Hosting
Deploy up to 100 static sites for free, custom domains with SSL, 100 GB monthly bandwidth, 260+ Cloudflare CDN locations.
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.
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.
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.
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.
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).
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]
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.
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]
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.
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
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.
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.
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.
LocalCert
Free `.localcert.net` subdomains compatible with public CAs for use with-in private networks
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).
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).
logtail.com
ClickHouse-based SQL-compatible log management. Free up to 1 GB per month, three days retention.
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.
logzab.com
Audit trail management system. Free 1,000 user activity logs per month, 1-month retention, for up to 5 projects.
LoSpec
Online tools for creating pixel art and other restrictive digital art, lots of tutorials/pallet list available to choose from for your games
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.
Mail7.io
Free Temp Email Addresses for QA Developers. Create email addresses instantly using Web Interface or API.
mailboxlayer.com
Email validation and verification JSON API for developers. 1,000 free API requests/month
MailboxValidator
Email verification service using real mail server connection to confirm valid email. The free API plan has 100 verifications per month.
mailchannels.com
Email API with REST API and SMTP integrations, free for upto 3,000 emails/month.
Mailcheck.ai
Prevent users to sign up with temporary email addresses, 120 requests/hour
Maildroppa
Up to 100 subscribers and unlimited emails as well as automations for free.
Maileroo
SMTP relay and email API for developers. 5,000 emails per month, unlimited domains, free email verification, blacklist monitoring, mail tester and more.
mailsac.com
Free API for temporary email testing, free public email hosting, outbound capture, email-to-slack/websocket/webhook
mailtrap.io
Fake SMTP server for development, free plan with 1 inbox, 50 messages, no team member, 2 emails/second, no forward rules
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.
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.
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.
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).
MDB GO
Free hosting for one project with two weeks Container TTL, 500 MB RAM per project, SFTP - 1G disk space.
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.
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.
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.
microenv.com
Create fake REST API for developers with the possibility to generate code and app in a docker container.
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.
Mindmup.com
Unlimited mind maps for free and store them in the cloud. Your mind maps are available everywhere, instantly, from any device.
Mintlify
Modern standard for API documentation. Beautiful and easy-to-maintain UI components, in-app search, and interactive playground. Free for 1 editor.
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.
Mockplus iDoc
Mockplus iDoc is a powerful design collaboration & handoff tool. Free Plan includes three users and five projects with all features available.
Mocky
A simple web app to generate custom HTTP responses for mocking HTTP requests. Also available as.
Modal
AI-driven IaaS with generous compute, storage; offers $30 (might be limited to $5 on certain accounts) of free monthly credits
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.
Momentary Email
Free Temporary Email Addresses. Read incoming emails on the website or by RSS feed.
Mutant Mail
Free 10 Email IDs, 1 Domain, 1 Mailbox. Single Mailbox for All Email IDs.
MySQL Visual Explain
Easy-to-understand and free MySQL EXPLAIN output visualizer to optimize slow queries.
Namae
Search various websites like GitHub, Gitlab, Heroku, Netlify, and many more for the availability of your project name.
Namekit
AI-powered domain discovery – find available, standard-price names instantly. Free daily queries.
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.
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.
nextbillion.ai
Maps related services: Geocoding, Navigation (Direction, Routing, Route Optimization, Distance Matrix), Maps SDK (Vector, Static, Mobile SDK). for each services.
NextReset
Free source-linked Codex reset history and official AI service incident updates, with a personal browser-local reset timer.
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
nixstats.com
Free for one server. E-Mail Notifications, public status page, 60-second interval, and more.
noip.at
Free DDNS service without registration, tracking, logging or advertising. No limit to domains.
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.
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.
octomind.dev
Auto-generated, run and maintained Playwright UI tests with AI-assisted test case generation
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.
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.
Orbisearch
Free bulk email validator, 100 validations per day, no signup required.
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.
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]
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.
packagecloud.io
Hosted Package Repositories for YUM, APT, RubyGem and PyPI. Limited free plans, open source plans available via request
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.
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.
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.
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.
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.
paperspace
Build & scale AI models, Develop, train, and deploy AI applications, free plan: public projects, 5Gb storage, basic instances.
paraio.com
Backend service API with flexible authentication, full-text search and caching. Free for one app, 1GB of app data.
Patr Cloud
An easy-to-use cloud platform, among its paid services it offers to host three static sites for free.
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
pepipost.com
Unlimited emails free for first three months, then first 25,000 emails/month free
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.
pingbreak.com
Modern uptime monitoring service. Check unlimited URLs and get downtime notifications via Discord, Slack, or email.
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.
Pingram.io
Communication infrastructure in 5 minutes. Free tier includes: 100 SMS and calls, 3000 Emails, Push, Slack, MS Teams, WhatsApp, and more.
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!
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.
Poliigon
Free and paid textures (with variable resolution), models, HDRIs, and brushes. Offers free plugins to export to software like Blender.
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]
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.
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.
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.
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.
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.
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]
producteev.com
Task management tool. Free, premium version with more options. Mobile applications available
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.
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").
Protectumus
Free website security check, site antivirus, and server firewall (WAF) for PHP. Email notifications for registered users in the free tier.
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.
Proton Mail
Free secure email account service provider with built-in end-to-end encryption. Free 1GB storage.
Proton Pass
Password manager with built-in email aliases, 2FA authenticator, sharing and passkeys. Available on web, browser extension, and mobile app and desktop.
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.
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
pubnub.com
Free push notifications for up to 1 million messages/month and 100 active daily devices
Pullflow
Pullflow offers an AI-enhanced platform for code review collaboration across GitHub, Slack, and VS Code.
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.
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
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.
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.
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.
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.
Raindrop.io
Private and secure bookmarking app for macOS, Windows, Android, iOS, and Web. Free Unlimited Bookmarks and Collaboration.
redirs.com
Easy domain redirects with auto-SSL, analytics, and URL path forwarding. Free for basic use (up to 5 domains).
Remarkbox
Open source hosted comments platform, pay what you can for "One moderator on a few domains with complete control over behavior & appearance"
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.
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.
ReportGPT
AI Powered Writing Assistant. The entire platform is free as long as you bring your own API key.
Resend
Transactional emails API for developers. 3,000 emails/month, 100 emails/day free, one custom domain.
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.
restspace.io
Configure a server with services for auth, data, files, email API, templates, and more, then compose into pipelines and transform data.
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.
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.
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.
Roadmap.sh
Free learning roadmaps covering all aspects of development from Blockchain to UX Design.
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.
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.
runcloud.io
Server management focusing mainly on PHP projects. Free for up to 1 server.
sandstorm.io
Sandstorm is an open source operating system for personal and private clouds. Free plan offers 200 MB storage and 5 grains free
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).
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.
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.
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.
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.
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.
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.
serveo
Expose local servers to the internet. No installation, no signup. Free subdomain, no limits.
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.
Sheetson
Instantly turn any Google Sheets into a RESTful API. Free plan available, including 1,000 free rows per sheet.
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.
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.
SimpleLogin
Open source, self-hostable email alias/forwarding solution. Free 10 Aliases, unlimited bandwidth, unlimited reply/send. Free for educational staff (student, researcher, etc.).
sitemonki.com
Website, domain, Cron & SSL monitoring, 5 monitors in each category for free
Skypack
The 100% Native ES Module JavaScript CDN. Free for 1 million requests per domain per month.
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.
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).
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.
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.
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.
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.
Sprig
1 In-Product Survey or Survey with Replay per month, with GPT-powered AI Analysis.
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.
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.
Static Web Apps
Build, deploy, and host static apps and serverless functions with free SSL, Authentication/Authorization, and custom domains
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.
Stickies
Visual collaboration app used for brainstorming, content curation, and notes. Free for up to 3 Walls, unlimited users, and 1 GB storage.
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.
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.
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.
Supermaven
Supermaven is a fast AI code completion plugin for VSCode, JetBrains, and Neovim. Free tier provides unlimited inline completions.
surge.sh
Static web publishing for Front-End developers. Unlimited sites with custom domain support
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.
SweetUptime
Server monitoring, uptime monitoring, DNS & domain monitoring. Monitor 10 server, 10 uptime, and 10 domain for free.
tabnine.com
Tabnine helps developers create better software faster by providing insights learned from all the code in the world. Plugin available.
taiga.io
Project management platform for startups and agile developers, free for Open Source
Tailark
A collection of modern, responsive, pre-built UI blocks designed for marketing websites.
Tailcolors
- A beautiful Tailwind CSS v4 color palette. Instantly preview & copy the perfect Tailwind CSS color class.
Tailkits
- A curated collection of Tailwind templates, components, and tools, plus useful generators for code, grids, box shadows, and more.
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.
Takeout
A constantly updated email service that makes sending emails easy. Five hundred transactional emails/month free.
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.
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.
Tara AI
Simple sprint management service. The free plan has unlimited tasks, sprints, and workspaces without user limits.
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/)}
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.
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.
teamwork.com
Project management & Team Chat. Free for five users and two projects. Premium plans are available.
temp-mail.io
Free disposable temporary email service with multiple emails at once and forwarding
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.
TempMailDetector.com
Verify up to 200 emails a month for free and see if an email is temporary or not.
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.
TestTLS.com
Test an SSL/TLS service for secure server configuration, certificates, chains, etc. Not limited to HTTPS.
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
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.
titanapps.io
productivity tools for Jira and monday.com offering structured checklists, templates, and approvals inside issues/tasks. Free plan available for small teams.
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.
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.
toranproxy.com
Proxy for Packagist and GitHub. Never fail CD. Free for personal use, 1 developer, no support
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.
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.
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.
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.
trashmail.com
Free disposable email addresses with forwarding and automatic address expiration
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.
TW Elements
Free Bootstrap components recreated with Tailwind CSS, but with better design and more functionalities.
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.
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.
Updrafts.app
WYSIWYG website builder for tailwindcss-based designs. Free for non-commercial usage.
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.
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.
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.
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.
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.
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.
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.
vaddy.net
Continuous web security testing with continuous integration (CI) tools. 3 domains, 10 scans history for free
vector.express
Convert your AI, CDR, DWG, DXF, EPS, HPGL, PDF, PLT, PS and SVG vector fast and easily.
Verifalia
Real-time email verification API with mailbox confirmation and disposable email address detector; 25 free email verifications/day.
Versoly
SaaS-focused website builder - unlimited websites, 70+ blocks, five templates, custom CSS, favicon, SEO and forms. No custom domain.
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).
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.
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.
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.
Web3Forms
Contact forms for Static & JAMStack Websites without writing backend code. The free plan allows Unlimited Forms, Unlimited Domains & 250 Submissions per month.
WebDB
Free Efficient Database IDE. Featuring Server Discovery, ERD, Data Generator, AI, NoSQL Structure Manager, Database Versioning and many more.
webhook.site
Verify webhooks, outbound HTTP requests, or emails with a custom URL. A temporary URL and email address are always free.
webhookbeam.com
Set up webhooks and monitor them via push notifications and emails.
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`).
WebScraping.AI
Simple Web Scraping API with built-in parsing, Chrome rendering, and proxies. Two thousand free API calls per month.
Webshrinker.com
Web Shrinker provides website screenshots and domain intelligence API services. Free 100 requests/month.
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.
What The Diff
AI-powered code review assistant. The free plan has a limit of 25,000 monthly tokens (~10 PRs).
Whitespace
One-click bug reports straight in your browser. Free plan with unlimited recordings for personal use.
Workers
Deploy serverless code for free on Cloudflare's global network-100k daily requests.
WorkOS
Free user management and authentication for up to 1 Million MAUs. Support email + password, social auth, Magic Auth, MFA, and more.
wormhol.org
Straightforward file sharing service. Share unlimited files up to 5GB with as many peers as you want.
xcloud.host
Server management and deployment platform with a user-friendly interface. Free tier available for one server.
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.
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.
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.
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 :
Zonomi
Free DNS hosting service with instant DNS propagation. Free plan: 1 DNS zone (domain name) with up to 10 DNS records.
zoom.us
Secure Video and Web conferencing, add-ons available. Free limited to 40 minutes
Zube
Project management with free plan for 4 Projects & 4 users. GitHub integration is available.
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.
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.
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.
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