Free Developer Tools tools
417 of 516 Developer Tools tools. See all Developer Tools.
3Commas is a comprehensive cryptocurrency trading platform that provides automated trading solutions through specialized bots.
Aceternity UI provides a collection of production-ready UI components and templates designed to help developers build modern and visually appealing websites.
ADB Wrench is a browser-based tool designed to simplify Android debugging.
Administrate is a Ruby on Rails library designed to generate administrative dashboards.
AdminJS is an open-source admin panel designed for Node.js applications, enabling developers to quickly build administrative interfaces.
AdonisJS is a comprehensive web framework for Node.js designed to streamline the development of robust web applications and API servers.
AgentPeek is a macOS application designed to integrate AI coding agents like Claude Code and Codex directly into your Mac's notch.
AgentQL provides a suite of tools designed to make the web AI-ready by enabling large language models (LLMs) and AI agents to interact with and extract structured data…
The AI SDK is a free, open-source TypeScript library developed by the creators of Next.js, designed to simplify the development of AI-powered products.
Alchemy is a comprehensive blockchain development platform designed for fintechs and developers to build, scale, and operate decentralized applications.
Alpine.js is a lightweight JavaScript framework for composing behavior directly in your HTML.
Angular is a TypeScript-based web application framework maintained by Google.
Ant Design is a comprehensive React UI library with enterprise-grade components.
Apify is a web scraping and automation platform that enables developers to build, run, and scale data extraction workflows.
Apollo GraphQL provides the definitive platform for building with GraphQL.
Appwrite is an open-source backend server for web, mobile, and Flutter developers.
Archify is a free, open-source browser extension that helps developers quickly understand the architecture behind any web page.
asdf is a command-line interface (CLI) tool designed to manage multiple runtime versions for various programming languages and tools.
Aspect Build provides a developer productivity platform and expert services designed to reduce the time and complexity of operating Bazel at scale.
Asteroid is an augmented reality development tool designed for creating 3D applications that interact with their environment.
Astro builds content-focused websites with partial hydration that sends minimal JavaScript to browsers.
AUDR (Agent Usage Detail Record) is an open standard under Apache 2.0 license for tracking the end-to-end usage and cost of AI agent runs across multiple systems.
Babel is the JavaScript compiler that lets you use tomorrow's syntax today.
Babylon.js is an open-source 3D rendering engine written in TypeScript that runs directly in the browser via WebGL, WebGL2, and WebGPU.
Backstage is an open-source platform for building developer portals.
BAML (Basically A Made-Up Language) is a new programming language designed to make AI pipeline development 10x more reliable.
BaseRT is a high-performance runtime designed specifically for Apple Silicon, enabling fast inference of open-source language models.
Bazel is an open-source build and test tool designed for large-scale, multi-language, and multi-platform software development.
Beezi AI is a platform designed to streamline and accelerate AI development by integrating directly into existing developer workflows and tools like GitHub, Jira, and…
Bentomux is a native desktop application that consolidates multiple coding agent workspaces into a single window, replacing scattered terminal tabs.
Bevy Engine is a free and open-source game engine built in Rust, designed for creating 2D and 3D games and applications.
Biome formats and lints JavaScript and TypeScript faster than the tools it replaces.
Bit is an open-source platform designed to organize source code into composable components, enabling developers to build reliable and scalable applications.
Blume is a local-first desktop application that provides comprehensive visibility and control over coding agents such as Cursor, Claude Code, and Codex.
BrowserBash is a free, open-source CLI tool that turns plain-English descriptions into automated browser tests, using an AI agent to drive a real browser instead of wr…
Browserless provides a robust Browser as a Service (BaaS) platform designed for web scraping and browser automation.
Bugfender is an app logging and error monitoring tool designed to help developers and teams catch and fix bugs that might otherwise go unnoticed.
Buildah is a command-line tool designed for building Open Container Initiative (OCI) compatible images.
Cloud Native Buildpacks (CNBs) convert application source code directly into OCI-compliant container images suitable for deployment on any cloud platform.
BullMQ is an open-source, multi-language message queue built on Redis, designed for processing background jobs at scale.
Bundlephobia is a tool designed to help developers understand the impact of adding new npm packages to their JavaScript bundles.
Cacher is a code snippet management platform that helps developers and teams organize, retrieve, and share reusable code across multiple editors and environments.
Capacitor is a cross-platform native runtime that makes it easy to build web apps that run natively on iOS, Android, and the web.
Catenary is a spatial IDE designed for orchestrating multiple AI coding agents simultaneously.
Centrifugo is a self-hosted, language-agnostic real-time messaging server built in Go, designed to handle persistent connections over various transports like WebSocket…
Arrow DEX is a cross-chain decentralized exchange operating on testnet environments, enabling users to swap stablecoins like USDC and EURC across multiple chains via t…
Chakra UI is an accessible, modular React component library that makes building beautiful interfaces effortless.
chat-recall is a developer-focused tool that unifies, secures, and makes searchable the conversation history across multiple AI coding assistants.
Clade is an AI product management tool that automates team workflows and project coordination.
ClearML tracks machine learning experiments and manages model lifecycle without lock-in.
Coda by Conductor Quantum is a natural-language interface for running quantum programs on real quantum hardware.
Code[Input] is a web-native platform that helps development teams handle merge conflicts, manage CODEOWNERS files, automate repository tasks, and view live engineering…
CodeApprove is a code review tool built specifically for GitHub power users.
CodeLook is a tool for instantly previewing code files with full deep theming support.
CodePen is a social development environment for front-end designers and developers.
Coder is an open-source platform that enables organizations to provide secure, self-hosted cloud development environments (CDEs) for their developers and AI coding age…
Codeshare is a web-based tool designed for real-time code collaboration.
GitHub Codespaces provides fully configured, secure cloud development environments that are native to GitHub.
Codiga is a static code analysis platform designed to help developers write cleaner, safer, and more secure code.
commitlint is a tool designed to help developers adhere to a consistent commit message format.
Compartment is an open-source runtime designed to help teams run, distribute, and collaborate around custom software on their self-owned infrastructure.
Context.dev (formerly Brand.dev) is a unified API for web scraping, brand intelligence, and AI-powered data extraction.
Copier is a versatile library and command-line interface (CLI) tool designed for rendering project templates.
CoreStory is a Code Intelligence Platform that transforms source code into complete specifications.
Crawlee is a powerful open-source web scraping library available for both JavaScript and Python.
daily.dev is a platform designed for software engineers to stay current with the evolving tech landscape.
DaisyUI is a Tailwind CSS plugin that provides a collection of useful component class names, enabling developers to write less code and build user interfaces more quic…
DBOS provides a platform for building durable applications using a transactional operating system approach.
DDEV is an open-source, local development environment designed for web developers, enabling them to quickly set up and manage Docker-based PHP projects.
Deconflict is a tool designed to help development teams proactively identify and prevent conflicting changes in Git repositories.
DeepScan is a static code analysis tool designed to improve JavaScript and TypeScript code quality.
DeepSource analyzes code for quality and security issues automatically.
Defer is a developer-first platform designed to help engineers build and manage long-running background jobs and workflows directly within their existing TypeScript or…
Defold is a free, source-available game engine for creating 2D and 3D games.
Deno is an open-source JavaScript runtime designed for the modern web, offering a secure and efficient environment for developing web applications.
Depfu automates the process of keeping software dependencies up-to-date for teams using GitHub and GitLab.
DevAlly is an AI-powered platform designed to help product teams achieve and maintain accessibility compliance quickly and efficiently.
DevCycle provides feature flags for teams who want developer-friendly tooling.
DevPod provides an open-source solution for defining and managing development environments as code.
DevSpace is an open-source command-line interface (CLI) tool designed to streamline the development and deployment of cloud-native applications on Kubernetes.
DevToys is a Swiss army knife for developers, providing offline tools for common tasks.
Dexie.js is a JavaScript library that simplifies working with IndexedDB, the browser's built-in offline-ready database.
Difftastic is a command-line interface (CLI) diff tool designed to compare files based on their underlying syntax rather than a traditional line-by-line approach.
dlt (data load tool) is an open-source Python library designed for data platform teams to extract and load data efficiently.
Docker is the leading containerization platform for developing, shipping, and running applications in containers.
Docusaurus is an open-source static site generator built by Meta specifically for creating documentation websites.
Dotenvx is an open-source tool designed to encrypt .env files, addressing the security vulnerabilities associated with plaintext environment variables.
Dots is a React animation library that transforms particle swarms into dynamic shapes, interactive UI components, and choreographed sequences.
Dropzone.js is a free and open-source JavaScript library designed to make file uploads easy and visually appealing on websites.
DVC (Data Version Control) brings software engineering best practices, specifically Git-like version control, to data, AI/ML, and data science teams.
Ebitengine is an open-source 2D game engine specifically designed for the Go programming language.
Effects SDK is a cross-platform software development kit that enables developers to integrate real-time AI-powered video enhancement into their applications.
Electric SQL provides composable sync primitives that enable real-time data synchronization for applications built on existing technology stacks, particularly those us…
Eleventy (11ty) is a static site generator designed for simplicity and performance.
Ellipsis AI is an AI-powered teammate designed to automate and enhance the code review process for developers.
Embeddable is an embedded analytics platform designed for developers to integrate custom, pixel-perfect dashboards into their applications.
Encore is a TypeScript backend framework designed to streamline the development and deployment of distributed systems.
Engagespot provides a comprehensive notification infrastructure for developers, enabling them to integrate various notification channels like email, SMS, push, webhook…
esbuild bundles JavaScript and TypeScript with speed that makes other bundlers feel broken.
ESLint catches problems in JavaScript and TypeScript code before they cause issues.
Evolu is a TypeScript library and local-first platform designed to help developers build applications that prioritize local data storage and offline functionality.
Exceptionless is open-source error and event tracking.
Express is a minimal and flexible Node.js web application framework designed to provide a robust set of features for building web and mobile applications.
FastHook is a webhook gateway and request bin for developers and engineering teams.
Fastify is a highly performant and extensible web framework for Node.js, designed to provide the best developer experience with minimal overhead.
FeatBit is an open-source feature flag and toggle management platform designed to help development teams ship faster, deploy safely, and conduct real-time experiments.
Fern is a platform that helps companies elevate their developer experience by automating the generation of SDKs and creating comprehensive API documentation.
Filament is an open-source UI framework built with Livewire, designed to significantly speed up the development of Laravel admin panels, customer-facing applications,…
Fileloom is an HTML to PDF API designed for developers and businesses needing fast and reliable PDF generation.
Files SDK provides a unified JavaScript SDK that simplifies interaction with various object and blob storage providers like S3, R2, GCS, Azure Blob Storage, and many o…
FindDiskKiller is a native macOS utility that consolidates app disk I/O, CPU usage, network activity, file access, and drive health into a single workspace.
Firebase Crashlytics is a comprehensive crash reporting solution designed for app developers to efficiently manage and resolve application crashes and Application Not…
Firecrawl is a web data API designed to power AI applications with clean, structured web data.
Flagsmith is an open-source feature flag and remote configuration service for web, mobile, and server-side applications.
flins is a universal skill and command manager designed for AI coding agents.
Flipt is open-source feature flagging that you can self-host completely.
FloatPic is a native macOS image viewer that offers a comprehensive set of tools for viewing, analyzing, and interacting with images.
FloMCP is a tool designed to significantly accelerate the development of Model Context Protocol (MCP) servers.
Flutter is Google's UI toolkit for building natively compiled applications for mobile, web, and desktop from a single codebase.
fnm (Fast Node Manager) is a Node.js version manager built with Rust, designed for speed and simplicity.
Spark is a modern, lightweight JavaScript framework designed for building fast and efficient web applications.
Framer Motion is a production-ready animation library for React, JavaScript, and Vue that simplifies the creation of smooth, performant, and interactive animations.
Gatsby is an open-source, React-based framework designed for building high-performance websites and web applications.
Gefyra is an open-source tool designed to accelerate local application development for Kubernetes environments.
TestFlight is an Apple service that allows developers to distribute beta versions of their iOS, iPadOS, macOS, tvOS, visionOS, and watchOS apps to testers.
GitHub CLI (gh) is an open-source command-line interface that integrates GitHub directly into your terminal.
Git tracks changes to code and enables collaboration through branches, merges, and distributed development.
Git Cola is a free and open-source graphical user interface (GUI) designed to simplify interaction with Git version control.
GitButler is a desktop client designed to enhance the Git workflow for developers.
Gitee is a comprehensive Git-based code hosting and R&D collaboration platform designed to empower developers and organizations with efficient software development lif…
Git repository hosting with unlimited public and private repos on all plans
GitHub Desktop provides visual Git for people who prefer not using command line.
GitKraken visualizes Git with a powerful graphical interface.
GitPod provides instant, cloud-based development environments that are always ready-to-code.
GitWarren is a local desktop application for macOS, Windows, and Linux that lets developers review code written by AI coding agents before any changes are committed or…
GlitchTip is an open-source error tracking, performance monitoring, and uptime checking tool designed to help developers and teams monitor their software applications.
Google Cloud Source Repositories provides private Git hosting on Google Cloud.
Gradio is an open-source Python library that allows developers to quickly create customizable web interfaces for their machine learning models.
Graphite is an AI-powered code review platform designed to accelerate development cycles and improve code quality for engineering teams.
GraphQL Code Generator is an open-source tool that automates the creation of type-safe code from GraphQL schemas and operations.
Hangfire is an open-source library designed to simplify background job processing in .NET and .NET Core applications.
Helium is a decentralized wireless network that aims to provide affordable and ubiquitous connectivity by replacing traditional cellular infrastructure with a communit…
Homebrew is a free and open-source package manager that simplifies the installation of software on macOS and Linux operating systems.
Hono is an ultrafast web framework for the Edge, supporting Cloudflare Workers, Deno, Bun, and Node.js.
htmx is a lightweight, dependency-free JavaScript library that allows developers to access AJAX, CSS Transitions, WebSockets, and Server Sent Events directly within HT…
Husky is a lightweight and fast tool that enhances your Git workflow by allowing you to easily manage and automate Git hooks.
Hydrogen is Shopify's headless commerce framework designed to help developers build custom storefronts quickly and efficiently.
HyperDX is an open-source observability platform designed to help engineering teams quickly resolve production issues.
Hyperprobe is an AI-powered production debugger that eliminates the log-and-redeploy cycle.
imgix is a visual media platform that automates image and video optimization, transformation, and delivery at scale.
Inngest is a developer platform for building reliable background jobs, workflows, and AI agents.
Instructor is an open-source library designed to simplify the process of structuring outputs from large language models (LLMs).
Intellijend is a developer productivity platform designed to automate repetitive coding tasks, integrate with popular version control systems, and provide real-time co…
Internet Plays Music is an interactive web application that allows users to collaboratively create music.
Ionic is an open-source UI toolkit for building high-quality, cross-platform mobile, desktop, and web applications using web technologies like HTML, CSS, and JavaScript.
Jam is a browser extension designed to streamline the bug reporting process for product teams.
Jesse is an open-source Python-based algorithmic trading framework designed for cryptocurrency traders.
Joi is a robust JavaScript library designed for schema description and data validation.
Jotai offers an atomic approach to global state management in React applications.
JSON Editor Online is a versatile and widely used web-based tool designed for viewing, editing, formatting, repairing, comparing, querying, transforming, validating, a…
Kedro is an open-source Python framework that applies software engineering best practices to the development of data and machine learning pipelines.
KeystoneJS builds Node.js backends with an auto-generated admin UI.
Kodus is an open-source AI code review platform for engineering teams.
KyttoMCP is a local control panel for Model Context Protocol servers.
Lage is a build system designed for monorepos that intelligently skips unnecessary work.
Langfuse is an open-source LLM engineering platform designed to help developers debug, evaluate, and improve their large language model (LLM) applications.
Laravel Herd is a native and blazing-fast development environment designed specifically for Laravel and PHP projects.
LaunchDarkly is a feature flag management platform enabling teams to control feature releases, run A/B experiments, and safely deploy code with 30 idiomatic SDKs and u…
Libraries.io is a free service that aggregates publicly available information on over 10 million open source packages across 32 different package managers.
LibreCAD is a free, open-source 2D CAD application designed for creating technical drawings, plans, and designs.
Lighthouse audits web pages for performance, accessibility, and SEO.
Lightrun is a developer observability platform that provides real-time, line-level code context across the entire Software Development Life Cycle (SDLC).
Niantic Spatial Platform, powered by Lightship, is a robust SDK designed for Unity developers to create immersive augmented reality (AR) experiences that interact with…
Lima (Linux Machines) is a tool designed to simplify the process of running Linux virtual machines on macOS.
LineageLens is an AI code provenance tool designed to provide visibility and control over AI-generated code within development workflows.
Liveblocks is a real-time collaboration infrastructure for building multiplayer experiences.
LlamaIndex is a data framework for building LLM applications that need access to your data.
LLM Status (llmstatus.ai) scans your codebase and infrastructure, filesystem, Vercel, Supabase, GitHub Actions and more, to find every AI model ID in use.
LLMTest is an open-source, MIT-licensed Python library designed to facilitate robust testing of Large Language Models (LLMs).
Loco is a translation management system designed to simplify the localization process for developers building multi-language applications and websites.
LocalStack is a cloud service emulator that runs in a single container, providing AWS-compatible APIs for local development and testing.
LocIn AI is an AI-driven localization tool designed for developers to expand their products globally without compromising brand voice.
Lucid Train is a systems-design-first coding harness that generates architecture diagrams directly from your codebase.
Montage is an agentic UI rendering platform designed to help developers build dynamic and intelligent user interfaces.
macadress.com is a MAC address lookup tool that goes beyond simply returning a vendor name.
Magentic is a Python library designed to simplify the integration of Large Language Models (LLMs) into Python applications.
Magic UI is a comprehensive UI library offering over 150 free and open-source animated components and effects.
MantisBT is an open-source issue tracking system designed to facilitate collaboration among team members and clients.
Markdoc is an open-source, Markdown-based syntax and toolchain designed for creating custom documentation sites and other content experiences.
MashuPack is a browser-based tool designed to help developers and researchers prepare local codebases for AI-driven workflows.
massCode is a free and open-source code snippet manager designed to boost developer productivity.
Mastra is a framework designed for developers to build AI-powered applications and agents using a modern TypeScript stack.
MUI offers a comprehensive suite of free and paid UI tools for React developers to build and ship new features faster.
MCPJam Inspector is a local development tool designed for building and testing ChatGPT Apps SDK and MCP (ext-apps) applications.
Memcached is a free, open-source, high-performance, distributed memory object caching system.
Metaflow is an open-source framework designed to simplify the development and deployment of machine learning, artificial intelligence, and data science projects.
Meteor is an open-source, full-stack JavaScript platform for building and deploying modern web and mobile applications.
MobX is a battle-tested library that makes state management simple and scalable by applying functional reactive programming (TFRP) principles.
ModelHub is a macOS menu bar application designed to simplify the management of local Large Language Models (LLMs).
ModHeader is a popular browser extension designed to help web developers and QA engineers modify HTTP request and response headers.
Nango provides a code-first platform for developers to build, deploy, and manage product integrations with external APIs, especially for AI applications.
NativeScript is an open-source framework for building truly native mobile applications using JavaScript, TypeScript, or Angular.
NATS is a high-performance, lightweight, and open-source messaging system designed for building modern distributed systems.
NestJS is an open-source, progressive Node.js framework that provides a robust, elegant, and well-structured foundation for building all kinds of server-side applicati…
Next.js has become the default way to build React applications, and it's not hard to see why.
Nimbalyst is the open-source visual workspace for building with leading coding agents.
Nitro is a next-generation server toolkit designed to simplify the creation and deployment of web servers.
No Strings Inc appears to be a niche software product or service.
Pingram (formerly NotificationAPI) is a comprehensive notification service designed for SaaS teams to quickly implement and manage a production-ready notification system.
Novu provides an open-source notification infrastructure that simplifies the process of building and managing multi-channel notification systems for modern products.
Npm Trends is a web-based tool that allows developers to visualize and compare the download statistics of various NPM packages.
Ntfy is an open-source, HTTP-based pub-sub notification service that simplifies sending push notifications to mobile devices and desktops.
Nuxt is an open-source, full-stack framework built on Vue.js, designed to streamline the development of modern web applications.
Nx is an open-source build platform designed to solve common development challenges in monorepos, such as slow local builds, complex code sharing, and inefficient CI p…
Ollama makes running large language models on your local machine as easy as running a Docker container.
OLO Robotics is a comprehensive web-based platform designed to streamline robotics development.
Olostep is a Web Data API designed for AI agents, enabling users to extract clean, structured data from websites.
Omi A11Y is a free Chrome extension designed to help developers and designers quickly identify and fix web accessibility issues.
oMLX is a macOS-native MLX server designed for high-performance local LLM inference on Apple Silicon.
OneDev is a comprehensive DevOps platform that integrates source code management, CI/CD pipelines, and issue tracking into a single, cohesive solution.
Open 3D Engine (O3DE) is a continuously evolving, unencumbered open-source 3D engine designed for a wide range of industries and applications.
OpenFreeMap provides a free and open-source solution for displaying custom maps on websites and applications.
OpenTelemetry provides observability standards for applications.
Orama is a modular runtime designed for developers to integrate advanced search capabilities into their products.
OrbStack is a high-performance, lightweight alternative to Docker Desktop designed for developers using Mac.
Osloq is an AI-powered tool that automatically reproduces bugs reported in GitHub issues.
Oxc is a collection of high-performance JavaScript tools built with Rust, designed to optimize and accelerate various stages of JavaScript development.
Particle Network is a comprehensive platform designed to simplify Web3 development and user onboarding for decentralized applications (dApps).
Patchrooms provides a visual feedback platform specifically designed for AI-native teams building applications with AI agents.
The Solana Foundation is a non-profit organization based in Zug, Switzerland, dedicated to fostering the growth and robustness of the Solana blockchain.
PDFops is a hosted HTTP API for programmatic PDF work, built to run on edge platforms such as Vercel and Cloudflare Workers.
pgroll is an open-source command-line tool designed to simplify PostgreSQL schema migrations by enabling zero-downtime updates.
Phantom is a multichain crypto wallet designed to make cryptocurrency accessible and easy to use for everyone.
Phaser is a free, open-source 2D game framework for making HTML5 games for desktop and mobile browsers.
PixiJS is a fast 2D rendering engine for the web, used to create interactive graphics, games, and animations.
Platformatic is an open-source toolkit designed to simplify the development and operation of high-performance Node.js applications.
pnpm solves a real problem: npm and Yarn waste disk space by duplicating packages across projects.
Podman Desktop is a free and open-source tool designed for developers to manage containers and Kubernetes locally.
POEditor is a comprehensive translation management system designed for seamless software localization.
Porkbun provides domain registration with competitive pricing.
Port is an Agentic Internal Developer Portal and Platform designed to help engineering organizations build autonomous workflows and streamline operations.
port22 allows developers to remotely control and monitor their AI coding agents (like Claude Code, Codex, or OpenCode) running on their Mac, directly from their iPhone.
API client for HTTP, GraphQL, gRPC, WebSocket, and MQTT requests
PowerSync is a sync engine designed to simplify data synchronization between backend databases and client-side SQLite.
pre-commit is a tool designed to manage and run Git hook scripts automatically before every commit.
Prefab provides a comprehensive platform for managing feature flags, dynamic logging, and secrets, designed specifically for developers.
Prelint is a tool designed to prevent "product drift" in code, especially code generated by AI.
Prisma Studio is a powerful tool designed for exploring and editing data within Prisma projects.
Proxy Tester by ScrapeOps is a free benchmarking tool that lets you compare residential, datacenter, mobile, and proxy API providers side by side.
PullApprove is a human code review framework designed to manage and enforce code approval policies, particularly for large and complex codebases.
Qodana is a static code analysis platform designed to help development teams maintain high code quality and security standards.
QStash is a serverless messaging and scheduling solution designed to simplify building reliable distributed systems.
Quokka.js is an in-editor playground for JavaScript and TypeScript that provides instant feedback on your code as you type.
Qursor is a browser extension designed to streamline front-end development by providing AI coding agents with precise UI context.
Qwik is a web framework designed to build instantly-interactive web applications without effort, focusing on performance optimization for the edge.
Radicle is an open-source, peer-to-peer code collaboration stack built on Git, designed to offer a decentralized alternative to centralized code hosting platforms.
Raftt is a cloud-based platform designed to streamline the developer experience on Kubernetes environments.
Rancher Desktop is an open-source application designed to provide a complete environment for working with containers and Kubernetes directly on your desktop.
Regent provides version control specifically designed for AI coding agents.
TanStack Query (formerly React Query) is a library for managing asynchronous state, server-state utilities, and data fetching across various JavaScript frameworks like…
Readme.so is a web-based editor designed to simplify the process of generating high-quality README files for software projects.
Recursi is a developer tool designed to enhance the coding experience through a recursively self-improving system.
Redux is an open-source JavaScript library designed for managing application state.
RelateDB is a browser-based Entity-Relationship Diagram (ERD) studio designed for visually modeling database schemas.
Releasely is a developer tool designed to automate the creation of changelogs from Git commit messages.
Remix takes a different philosophical approach than other React frameworks.
Ren'Py is an open-source visual novel engine designed for creating interactive stories and life simulation games.
Review is a local desktop application for conducting code reviews directly on your machine.
Reviewable is a code review tool specifically designed to enhance the GitHub code review experience.
DriftDetector identifies the silent accumulation of mistakes inside code that appears to work.
Rolldown is a high-performance JavaScript bundler built with Rust, designed to offer a significantly faster alternative to existing bundlers.
Rosentic is a pre-merge compatibility checker designed to prevent runtime errors caused by conflicting changes across multiple active development branches, especially…
RPCForge provides a professional Ethereum RPC gateway designed for developers and decentralized applications (dApps).
Ruby is a virtual receptionist and live chat service for small businesses, pairing trained human receptionists with AI to answer calls 24/7, schedule appointments, qua…
RunKit is a Node.js playground in the browser with every npm package instantly available.
Rush is an open-source monorepo management tool designed for JavaScript developers who build and publish numerous packages from a single Git repository.
Scrapy is a collaborative, open-source framework written in Python for extracting public web data.
Screen Ruler is a powerful Chrome extension designed for web developers and designers to inspect elements, measure distances, extract assets, and validate designs dire…
Semgrep is a fast, open-source static analysis tool for finding bugs, detecting security vulnerabilities, and enforcing code standards across 30+ programming languages.
Sequelize is a powerful Object-Relational Mapper (ORM) for Node.js, supporting various relational databases like PostgreSQL, MySQL, MariaDB, SQLite, and SQL Server.
ServBay is a comprehensive local web development environment tool designed for macOS and Windows.
shadcn/ui is an open-source collection of beautifully designed UI components that developers can use as a foundation for their design systems.
SheetBase is a developer tool that turns Google Sheets spreadsheets into RESTful API endpoints, allowing you to use spreadsheet data as a lightweight backend for websi…
Shepherd.js is an open-source JavaScript library designed to create guided tours for web applications.
SHIUI is a UI kit that provides over 100 reusable interface elements and 24 pre-built blocks, all styled with a distinctive Japanese ink (sumi-e) aesthetic.
Shotsnapp is an online tool that allows users to quickly and easily create beautiful device mockup images for their app or website designs.
Signadot provides a scalable agentic development platform that enables AI agents and human developers to test code against live Kubernetes workloads and databases with…
SmartGit is a comprehensive graphical Git client designed to simplify Git workflows for both new and experienced developers.
Snapshot is a decentralized voting system that allows Web3 communities and Decentralized Autonomous Organizations (DAOs) to conduct off-chain, gasless polls.
SnippetsLab is a robust code snippet manager designed for developers to efficiently store, organize, and retrieve their code.
Solar2D is a powerful and completely free 2D game engine, forked from the well-established Corona SDK.
Solid.js is a reactive JavaScript library designed for building user interfaces.
SonarCloud analyzes code quality and security in cloud.
Sourcery provides AI-driven code review and security scanning to help development teams maintain high velocity and code quality in an era of accelerated AI-driven deve…
StackPatch is a command-line interface (CLI) tool designed to simplify the integration of common, battle-tested features like authentication, Redis, and payments into…
StaleMate PR is a GitHub App designed to help development teams manage their pull requests more efficiently.
Steampipe is an open-source data-access layer that allows users to query cloud APIs, code, and other data sources using standard SQL.
Steel is an open-source headless browser API designed to enable developers to control fleets of browsers in the cloud.
Stoplight is an API design platform that helps teams create, manage, and publish OpenAPI specifications with visual editors and collaborative workflows.
Storybook is an open-source tool for building UI components in isolation.
Streamlit is an open-source app framework that allows data scientists and developers to quickly build and share interactive web applications using only Python.
Stride Engine is a free and open-source cross-platform C# game engine designed for creating 2D and 3D games, as well as other interactive content for desktop and VR.
Mac Screen Simulator is a free, no-sign-up tool designed for developers and designers to instantly preview how any website or web application appears across various co…
Stylelint is a powerful CSS linter designed to help developers maintain high-quality, error-free, and consistent CSS codebases.
Supabase Realtime is a service that enables developers to build real-time applications by synchronizing client state globally over WebSockets.
superfile is a terminal-based file manager designed for developers who live in the command line.
Superlog is a real-time log aggregation and debugging tool specifically designed for serverless applications.
SuprSend provides a comprehensive notification infrastructure designed for developer and product teams.
Svelte is a modern UI framework that distinguishes itself by compiling your code into small, vanilla JavaScript bundles at build time, rather than relying on a runtime…
Svix is a Webhooks as a Service platform designed to simplify the complexities of sending and receiving webhooks.
SWR is a lightweight React Hooks library designed for efficient data fetching.
Swytchcode is a developer tool that sits between AI agents and production code, designed to prevent common integration failures.
Syncfusion offers a comprehensive suite of UI components, document processing SDKs, and an AI-powered code editor designed to boost developer productivity and accelera…
Create T3 App is a command-line interface (CLI) tool designed to quickly set up a typesafe, full-stack Next.js application.
Tailwind CSS is a utility-first CSS framework that allows developers to build modern websites directly within their HTML markup.
Teller is an open-source, cloud-native secrets management tool that lets developers access and manage secrets directly from the terminal.
Terminal Candy is a native macOS application that allows users to customize the appearance of their terminal with unique skins.
Textbee.dev transforms your Android phone into an SMS gateway, enabling applications to send SMS messages programmatically via a RESTful API.
The Virtual OS Museum is a comprehensive collection of emulated operating systems and standalone applications, designed for historical computing enthusiasts, researche…
Thesys offers C1, an API middleware that transforms large language model (LLM) text responses into dynamic, interactive user interfaces.
Three.js is the most popular JavaScript library for creating 3D graphics in web browsers using WebGL, WebGPU, and SVG renderers.
Tilt is an open-source toolkit designed to streamline the development experience for microservice applications running on Kubernetes.
Tinkerfont is a browser extension (for Chrome and Firefox) that lets you inspect, replace, and test fonts on any live website.
tldr pages is a community-driven project that aims to simplify the traditional Unix man pages by providing practical examples for common commands.
Toolport is a free, open-source local MCP (Model Context Protocol) gateway that centralizes MCP server management for AI agents.
Trigger.dev is the background jobs framework for Next.js and serverless applications.
TryCase provides disposable Linux desktop environments that coding agents can use to run and test applications.
Turborepo makes monorepos manageable by solving the fundamental problem: you shouldn't rebuild or retest code that hasn't changed.
TypeBox is a powerful and lightweight library designed for runtime validation of TypeScript static types.
TypeORM is an Object Relational Mapper (ORM) that can run in various JavaScript environments like Node.js, browsers, and mobile applications.
TypeScript is a strongly typed programming language that builds upon JavaScript by adding optional static type definitions.
Typesense is an open-source search engine optimized for instant search-as-you-type experiences.
Uiverse is a comprehensive online library offering a wide array of open-source UI elements, primarily in CSS and Tailwind CSS.
Unleash is the enterprise FeatureOps platform that engineering teams use to control how software behaves in production.
Uploadcare is a file uploading and processing platform for web and mobile apps.
Usersnap is a visual feedback and bug tracking tool that makes it easy to report issues.
Val Town is a cloud platform for writing and running JavaScript/TypeScript functions (vals) with built-in cron scheduling, HTTP endpoints, and collaborative sharing.
Valibot is an open-source schema library for TypeScript designed to validate unknown data with a focus on bundle size, type safety, and developer experience.
Velt Collaboration provides a complete collaboration toolkit as an SDK for B2B products, allowing developers to integrate features like contextual comments, notificati…
Vessel is a developer-first, native integration platform designed to help businesses build deep customer-facing integrations quickly across various tools like sales an…
VideoSDK provides a comprehensive platform with developer tools and low-latency infrastructure for integrating real-time communication into applications.
Vinxi is a full-stack JavaScript SDK designed to simplify the development of JavaScript applications and frameworks.
Vue.js is an approachable, performant, and versatile JavaScript framework designed for building web user interfaces.
VWFNDR™ + MBL is a free Android camera application designed to transform smartphones into genuine photographic tools.
WakaTime provides fully automatic code statistics and insights directly from your Integrated Development Environment (IDE) or text editor.
Wasmtime is a high-performance and secure runtime for WebAssembly (Wasm) and WebAssembly System Interface (WASI).
WebdriverIO is a test automation framework for Node.js that enables testing of web and mobile applications.
Webhook.site provides a service for testing, transforming, and automating web requests and emails.
What The Diff is an AI-powered application designed to automate and enhance the pull request (PR) process for development teams.
YOURLS (Your Own URL Shortener) is a free and open-source software that allows users to run their own URL shortening service.
Zeplo is a magical HTTP request queue designed for developers to easily add advanced asynchronous capabilities to their existing APIs.
Zero is an experimental programming language designed for agentic workflows.
Zero is a software solution designed to enable developers to build web applications with instant user interfaces by leveraging a sync-based architecture.
Zod is a TypeScript-first validation library designed to help developers define and validate data schemas.
Zustand is a lightweight and performant state management library for React applications.