category
Open Source Developer Tools
Better tooling, zero license servers
All Developer Tools
Reverse engineer anything with agents, from app behavior down to native binaries.
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor
The library for web and native user interfaces.
AI coding agent for terminal, IDE, and desktop
Visual Studio Code
Visual builder for AI agents and RAG pipelines
Minimal terminal coding agent you can fully customize
🪨 why use many token when few token do trick. Viral skill + proxy for coding agents that cuts 65% of tokens by talking like a caveman.
Postgres-powered backend platform for production apps
Run multiple AI coding agents in parallel, side by side
Org chart, budgets, and governance for AI agent teams
FastAPI framework, high performance, easy to learn, fast to code, ready for production
Hyperextensible, Lua-powered Vim-based text editor
Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.
JavaScript API for Chrome and Firefox
Agent skill for beautiful, verifiable architecture, workflow, sequence, data-flow, and lifecycle diagrams—self-contained HTML with motion and crisp export.
High-performance code editor built for speed and AI
Autonomous coding agents that complete real engineering tasks
CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies
Next generation frontend tooling. It's fast!
Sleek, intuitive API development and testing platform
VS Code in the browser
Pre-indexed code knowledge graph, auto syncs on code changes, for Claude Code, Codex, Gemini, Cursor, OpenCode, AntiGravity, Kiro, CoPilot, and Hermes Agent — f
Open-source AI coding agent for your editor and terminal
High-performance terminal with GPU acceleration
A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the application on demand. Throug
A modern terminal built around AI coding agents
Fast GPU-accelerated terminal with native UI design
A skill to stop your coding agent from burying the answer. ADHD-friendly output.
Self-hosted Git service for seamless collaboration
Open-source backend platform for rapid app development
在 dsh 里装上这个插件即可,无需登录、注册或填 API Key,就能使用包括 DeepSeek V4.1 Flash、Kimi K3 在内的前沿模型——完全免费,不限量。 All you do is install this plugin in dsh: no login, no sign-up, no API k
Prettier is an opinionated code formatter.
Fast, easy and reliable testing for anything that runs in a browser.
tmux source code
AI pair programmer that works inside your terminal
Fast, efficient, battle-tested at Alibaba's scale. Hybrid architecture code review tool: deterministic pipelines + LLM Agent, precise line-level comments, built
High-performance code intelligence MCP server. Indexes codebases into a persistent knowledge graph — average repo in milliseconds. 158 languages, sub-ms queries
Lightweight, fast, and open-source API client for developers
Self-hosted Git service that's lightweight and easy to install
the runtime your coding agents live on
A post-modern modal text editor.
Delightful JavaScript Testing.
The zero configuration build tool for the web. 📦🚀
AI-powered coding made simple and efficient
Build internal tools rapidly without coding
Empower your team to build custom internal tools rapidly
Collection of handy online tools for developers, with great UX.
ShellCheck, a static analysis tool for shell scripts
An extremely fast bundler for the web
Powerful API development and testing made effortless
Lightning-fast and Powerful Code Editor written in Rust
Craft rich text experiences with ease
Open-source data platform for effortless content management
End-to-end open source software delivery platform
LLM API 管理 & 分发系统,支持 OpenAI、Azure、Anthropic Claude、Google Gemini、DeepSeek、字节豆包、ChatGLM、文心一言、讯飞星火、通义千问、360 智脑、腾讯混元等主流模型,统一 API 适配,可用于 key 管理与二次分发。单可执行文件,提供 Docke
Open-source coding agent for your IDE and terminal
Organize terminal sessions with built-in layouts, tabs, and panes
GPU-accelerated terminal built for power users
A browser automation framework and ecosystem.
AI-powered code completion for seamless development
binary releases of VS Code without MS branding/telemetry/licensing
Local-first code intelligence graph for MCP and CLI. Builds a persistent map of your codebase so AI coding tools read only what matters, with benchmarked contex
Self-hosted mini-PaaS for deploying applications easily
A Swiss Army knife for developers.
Build system optimized for JavaScript and TypeScript, written in Rust
The OpenAPI Specification Repository
Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you build AI agents that turn intent into act
The Monorepo Platform that amplifies both developers and AI agents. Nx optimizes your builds, scales your CI, and fixes failed PRs automatically. Ship in half t
GPU-accelerated terminal emulator with multiplexing across all platforms
Full-stack Python platform for web apps and internal tools
Blazing fast Neovim framework providing solid defaults and a beautiful UI, enhancing your neovim experience.
Build powerful web apps without complex coding
AI coding agent for VS Code, JetBrains, CLI, and Cloud
AI coding agent and CLI for complex terminal workflows
Find and fix problems in your JavaScript code.
Visual React editor with real-time code updates
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec
📘 OpenAPI/Swagger-generated API Reference Documentation
D2 is a modern diagram scripting language that turns text to diagrams.
A modified web browser that helps in responsive web development. A web developer's must have dev-tool.
Build custom apps without code, deploy with ease
AI-powered DevSecOps for faster, secure software delivery
SafeLine is a self-hosted WAF(Web Application Firewall) / reverse proxy to protect your web apps from attacks and exploits.
A native code editor for macOS
Run coding agents from your phone, desktop, or terminal
Cross-platform terminal with AI built in
A powerful GUI app and Toolkit for Claude Code - Create custom agents, manage interactive Claude Code sessions, run secure background agents, and more.
Build unlimited AI apps locally with zero vendor lock-in
Mobile Security Framework (MobSF) is an automated, all-in-one mobile application (Android/iOS/Windows) pen-testing, malware analysis and security assessment fra
Flexible database meets intuitive spreadsheet interface
Revolutionize your Git workflow with simultaneous branches
数字生命卡兹克开源的 AI Skills 合集 | Agent Skills: leader(帮你定义目标), neat-freak 洁癖, hv-analysis, khazix-writer & more — Claude Code, Codex & 40+ agents
Create, customize, and manage your website with ease
AI agents that autonomously fix code and resolve GitHub issues
gRPC to JSON proxy generator following the gRPC HTTP spec
Fast, secure, offline API client with Git integration
Hurl, run and test HTTP requests with plain text.
Adaptable, fast automation for all
Visualize any GitHub codebase: free interactive architecture diagrams and one-minute explainer videos. Replace 'hub' with 'diagram' in any GitHub URL.
Industry standard API mocking for JavaScript.
Advanced terminal with modern features for Mac developers
Universal provider proxy for OpenAI Codex & Claude Code — use any LLM (Claude, Gemini, Grok, DeepSeek, Ollama…) with Codex CLI, App, SDK, and Claude Code
Next generation testing framework powered by Vite.
High-performance API gateway with built-in LLM support
Fast, secure cloud development environments on your infrastructure
Open-source API documentation and testing platform
Easy and Repeatable Kubernetes Development
Open source AI coding agent. Designed for large projects and real world tasks.
Run dozens of AI coding agents in parallel on your machine
Codespaces but open-source, client-only and unopinionated: Works with any IDE and lets you use any cloud, kubernetes or just localhost docker.
Graph-Native Infrastructure for Context and Accountable AI Systems
🚀 PR Agent: The Original Open-Source PR Reviewer. This project is not the Qodo free tier.
The developer platform for on-demand cloud development environments to create software faster and more securely.
Stackryze Domains: Free Domain for Everyone, Claim yours today.
🚀 Beautiful highly customizable statusline for Claude Code CLI with powerline support, themes, and more.
Build product integrations with 500+ APIs in hours
Automatically generate RESTful API documentation with Swagger 2.0 for Go.
Fast Rust-based bundler for the web with a modernized webpack API 🦀
Build full-stack apps with TypeScript and real-time sync
Accelerate backend development with effortless scalability
The modern API client that lives in your terminal.
Instant, easy, and predictable development environments
Low-code platform allows you to build business apps, enables you to quickly create internal tools such as dashboard, crud app, admin panel, crm, cms, etc. Suppo
🔥 A cross-platform build utility based on Lua
Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!
Generate production-quality SVG+PNG technical diagrams from natural language. 7 styles, UML support, and AI/Agent workflow patterns.
Common layer for composing and governing AI agents
Python Serverless Microframework for AWS
Turbocharge Claude Code, Cursor, Codex, Gemini & every coding agent: faster, cheaper, with contextual understanding specific to your codebase.
Turbocharge Claude Code, Cursor, Codex, Gemini & every coding agent: faster, cheaper, with contextual understanding specific to your codebase.
Build and deploy scalable storefronts with ease
JSON Hero is an open-source, beautiful JSON explorer for the web that lets you browse, search and navigate your JSON files at speed. 🚀. Built with 💜 by the Tr
Universal API management for REST, GraphQL, gRPC & async
⚡ Next-gen Web Extension Framework
Flexible, scalable Node.js CMS and app framework
网易云音乐命令行版本
Next-gen browser and mobile automation test framework for Node.js
Annotate and review coding agent plans and code diffs visually, share with your team, send feedback to agents with one click.
Review-first terminal diff viewer for agentic coders
🐶 Automated code review tool integrated with any code analysis tools regardless of programming language
🤖 AI Gateway | AI Native API Gateway
Your Gateway to Embedded Software Development Excellence :alien:
List any node_modules 📦 dir in your system and how heavy they are. You can then select which ones you want to erase to free up space 🧹
Lightweight (7MB) Terminal-first AI-native dev workspace
Terminal based IDE & text editor: easy, powerful and fast
Official repository for Spyder - The Scientific Python Development Environment
Serverless backend platform for modern app development
💨 Fast, Async-ready, Openapi, type hints based framework for building APIs
🕸️ Create REST and GraphQL APIs, scaffold Jamstack webapps, stream changes in real-time.
Visual web development with code-level control
Create powerful forms with ease and flexibility
Test Automation Made Simple
Apache ShenYu is a Java native API Gateway for service proxy, protocol conversion and API governance.
Visual development platform for modern web experiences
The unofficial WWDC app for macOS
.NET API Gateway
Sandbox for developing and testing UI components in isolation
Flexible e-commerce for modern businesses
Light, flexible and extensible ASGI framework | Built to scale
Effortless API mocking for seamless development
🦸 AI 编程超能力 · 中文增强版 — superpowers(250k+ ⭐)完整汉化 + 4 个中国原创 skills,让 Claude Code / Copilot CLI / Hermes Agent / Cursor / Windsurf / Kiro / Gemini CLI / Qoder 等 26
Generate TypeScript types from OpenAPI 3 specs
The last Markdown editor, ever.
Friendly and fast tool for sending HTTP requests
Open-source cloud communications platform for developers
Simple yet powerful CI/CD engine with great extensibility
Open-source serverless CMS for modern web projects
The Modern Application Platform.
A highly extensible Git implementation in pure Go.
Fast, Declarative, Reproducible, and Composable Developer Environments using Nix
LiteIDE is a simple, open source, cross-platform Go IDE.
🍔 A Node.js Serverless Framework for front-end/full-stack developers. Build the application for next decade. Works on AWS, Alibaba Cloud, Tencent Cloud and tra
OWASP dependency-check is a software composition analysis utility that detects publicly disclosed vulnerabilities in application dependencies.
An extremely fast CSS parser, transformer, bundler, and minifier written in Rust.
The modern GraphQL runtime
Terminal-native AI coding agent built on ZSH
Acode - powerful text/code editor for android
Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API
A tool for mocking HTTP services
The Swagger/OpenAPI toolchain for .NET, ASP.NET Core and TypeScript.
A maintained ctags implementation
Executes commands in response to file modifications
DeepAudit:人人拥有的 AI 黑客战队,让漏洞挖掘触手可及。国内首个开源的代码漏洞挖掘多智能体系统。小白一键部署运行,自主协作审计 + 自动化沙箱 PoC 验证。支持 Ollama 私有部署 ,一键生成报告。支持中转站。让安全不再昂贵,让审计不再复杂。
Self-hosted AI gateway for multi-channel, multi-credential setups — API keys and subscription accounts, scheduling, failover, request logs and usage. 自托管 AI 网关:
A fast type checker and language server for Python
Build powerful backends without leaving your browser
The Open Source Agentic IDE. Create and orchestrate coding agents, show app previews and run git workflows. Use your favorite models across all providers.
Catches mail and serves it through a dream.
CLI tool to build, test, debug, and deploy Serverless applications using AWS SAM
The tiniest PaaS you've ever seen. Piku allows you to do git push deployments to your own servers.
Build stateful backends with in-memory actors
Generate compile_commands.json for any C or C++ build
A lightweight text editor written in Lua
A RWKV management and startup tool, full automation, only 8MB. And provides an interface compatible with the OpenAI API. RWKV is a large language model that is
Open-source auth gateway connecting 1500+ SaaS providers to AI agents through SDK, CLI, MCP, HTTP, and OpenAPI.
Dashboard for running multiple coding agents in parallel
Design-first Go framework that generates API code, documentation, and clients. Define once in an elegant DSL, deploy as HTTP and gRPC services with zero drift b
Kubernetes-based, scale-to-zero, request-driven compute
🎨 Beautiful images of your code — from right inside your terminal.
Single-file PHP file manager, browser and manage your files efficiently and easily with tinyfilemanager
Super-fast/easy runtime validators and serializers via transformation
A payment application to demonstrate real-world usage of Cypress testing methods, patterns, and workflows.
Next Generation Agentic Proxy for AI Agents and MCP servers
A Cloud Native traffic orchestration system. (CNCF Project)
Typesafe APIs Made Simple 🪄
The Cloud-Native API Gateway and AI Gateway
Official Notion JavaScript Client
A remote debugging platform you'll definitely find useful. Lightweight, cross-platform, out-of-box debugging tool
Extremely fast Vite-compatible web build tool written in Rust
👨🚀 Turn API specifications into production-ready SDKs, validators, mocks, and more. 20+ plugins. Millions of weekly npm downloads. Used by Vercel, OpenCode,
⚡️ Open-source AI Gateway — Use any SDK to call 100+ LLMs. Built-in failover, load balancing, cost control & end-to-end tracing.
Open source and extensible Platform as a Service (PaaS).
Run Express and other Node.js frameworks on AWS Serverless technologies such as Lambda, API Gateway, Lambda@Edge, and more.
A cinematic Git commit replay tool for the terminal, turning your Git history into a living, animated story.
The cross-browser extension framework.
Fullstack Workspace for Humans & Machines
Open-source data integration for modern stacks
package for building REST-style Web Services using Go
Ministack: Free, open-source local AWS emulator - 60+ services, Terraform compatible, real databases. Free forever. MIT licensed.
A progressive web framework based on React and Rsbuild.
MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1,
sbt, the interactive build tool
Build reliable AI agents with unified tool integration
An API Gateway built on Spring Framework and Spring Boot providing routing and more.
Every API has a secret identity. This finds it, absorbs every feature from every competing tool, then builds the GOAT CLI — designed for AI agents first, with S
A build system for creating cross-platform styles.
The IDE you know, rebuilt in Rust. IntelliJ IDEA–style keymap, tool windows and search-everywhere in a fast native app: editor, code insight, debugger, Git, ter
The agent IDE that builds itself
Deploy apps instantly with git push - open source alternative
OpenAPI (f.k.a Swagger) Specification code generator. Supports C#, PowerShell, Go, Java, Node.js, TypeScript, Python
The first AI agent that builds permissionless integrations through reverse engineering platforms' internal APIs.
An AI Gateway, registry, and proxy that sits in front of any MCP, A2A, or REST/gRPC APIs, exposing a unified endpoint with centralized discovery, guardrails and
Open-source, cross platform Qt6 based IDE for reverse-engineering Android application packages. It features a friendly IDE-like layout including code editor wit
PostgreSQL ➕ REST, low-code, simplify and accelerate development, ⚡ instant, realtime, high-performance on any Postgres application, existing or new, MCP server
Connexion is a modern Python web framework that makes spec-first and api-first development easy.
🧙AutoDev: the Multi-Agent coding development platform built on Kotlin Multiplatform.
open source Kubernetes-native API gateway for microservices built on the Envoy Proxy
Build, bundle & ship your Rust WASM application to the web.
A simple, secure MCP-to-OpenAPI proxy server
Optimizing inference proxy for LLMs
🥦 A modern cli tool that keeps your deps fresh
React Ace Component
:cake: Cake (C# Make) is a cross platform build automation system.
scanner detecting the use of JavaScript libraries with known vulnerabilities. Can also generate an SBOM of the libraries it finds.
Bulk port forwarding Kubernetes services for local development.
A next-gen FOSS self-hosted unified zero trust secure access platform that can operate as a remote access VPN, a ZTNA platform, API/AI/MCP gateway, a PaaS, an n
C/C++/ObjC language server supporting cross references, hierarchies, completion and semantic highlighting
The Chrome DevTools UI
Create stunning data visualizations with ease
Modern command-line HTTP client for the API era
Generate Pydantic v2 models, dataclasses, TypedDict, and msgspec.Struct from OpenAPI, JSON Schema, GraphQL, Avro, Protobuf, and raw JSON/YAML/CSV.
Create powerful forms with ease and flexibility
🛵 The stylish Node.js middleware engine for AWS Lambda 🛵
Deploy Node.js projects to AWS Lambda and API Gateway easily
The Pants Build System
An API Client package to access the APIs for NBA.com
OpenAPI based HTTP Client code generator
Pure Go implementation of jq
Claude Code, Codex, Copilot, Pi, OpenCode, Gemini, and Prime Agent versions of Poteto's pstack. Rigorous agent workflows with Cursor primitives translated for o
Feature-rich backend that runs anywhere you need it
A fast and lightweight IDE
A simple API client (postman like) in your terminal
Library for OpenAPI 3 with spring-boot
Single file PHP script that adds a REST API to a SQL database
Catch API bugs before your users do
The power of curl, the ease of use of httpie.
A single hub to find Claude Skills, Agents, Commands, Hooks, Plugins, and Marketplace collections to extend Claude Code, Claude Desktop, Agent SDK and OpenClaw
Serverless Python
ProGuard, Java optimizer and obfuscator
TeXstudio is a fully featured LaTeX editor. Our goal is to make writing LaTeX documents as easy and comfortable as possible.
Open-source AI coding assistant for VS Code. Code completion, chat, edits and reviews with local or hosted models. Your models, your infrastructure.
Java client for Kubernetes & OpenShift
A fast, lightweight and more productive microservices framework
Next generation noIM application in your own workspace, not only another Slack/Discord/Rocket.chat
🕸️ GraphQL Federation Framework for any API services such as REST, OpenAPI, Swagger, SOAP, gRPC and more...
a code review TUI with vim keybindings
A well configured and structured Neovim.
Fast, extensible build tool for modern web development
WorkBuddy 国际国内多账号反代网关,支持 Codex / Claude Code / DSH与标准 OpenAI 客户端。
NodeJS library that generates Typescript or Javascript clients based on the OpenAPI specification
PHP Curl Class makes it easy to send HTTP requests and integrate with web APIs
Microservices on .NET platforms used ASP.NET Web API, Docker, RabbitMQ, MassTransit, Grpc, Yarp API Gateway, PostgreSQL, Redis, SQLite, SqlServer, Marten, Entit
A flexible JSON/YAML linter for creating automated style guides, with baked in support for OpenAPI (v3.1, v3.0, and v2.0), Arazzo v1.0, as well as AsyncAPI v2.x
OpenAI API + Ruby! 🤖❤️ GPT-5 & Realtime WebRTC compatible!
VS Code rebuilt on Tauri. Same architecture, 96% smaller. Early release.
Apache NetBeans
Manages Envoy Proxy as a Standalone or Kubernetes-based Application Gateway
Turn Windsurf / Devin Desktop's 100+ AI models (Claude, GPT, Gemini, DeepSeek, Kimi, GLM, SWE) into OpenAI-, Anthropic- & Gemini-compatible APIs. Zero-dependenc
A lightweight, cross-platform code editor, built with Tauri (Rust and React) with Git support, AI agents, vim keybindings.
The source for REST API specifications for Microsoft Azure.
🐧 Harness for RSI. Let AI Build AI. Multi-Agent Auto-Dev Platform. Everything is Transparent.
AI API identity gateway — reverse proxy that normalizes device fingerprints and telemetry for privacy-preserving API proxying
🚀 Click the dom to open your IDE and position the cursor at dom's source code location! 点击页面 dom 来打开 IDE 并将光标自动定位到源代码位置!
Free, open-source visual website builder for designers
The text editor designed to make coding as simple and fun as playing a video game
Official Haskell IDE support via the language server protocol (LSP)
Interactive UI for local node modules inspection
Modern data layer for TypeScript apps - type-safe ORM, built-in access control, automatic query services
Rust task runner and build tool.
API Dash is a beautiful AI-powered open-source cross-platform (Desktop & Mobile) API Client built using Flutter which can help you easily create & customize you
Docker image with Uvicorn managed by Gunicorn for high-performance FastAPI web applications in Python with performance auto-tuning.
Switch between Claude accounts, Gemini, Copilot, OpenRouter (300+ models) via CLIProxyAPI OAuth proxy. Visual dashboard, remote proxy support, WebSearch fallbac
A better build tool for Java, Scala and Kotlin: Simpler than Maven, easier than Gradle, with 3-7x faster dev workflows than other JVM build tools
Terminal security for developers and AI agents. Intercepts homograph URLs, pipe-to-shell, ANSI injection, obfuscated payloads, data exfiltration, and malicious
Offline-First Minimalistic HTTP & Socket Testing Client for the Web & Desktop
MCP Aggregator, Orchestrator, Middleware, Gateway in one docker
A blazing fast & offline frontend code editor
Blazing-fast API gateway with linear scalability
A modular, stack-agnostic toolkit of security review skills for AI coding agents to autonomously find, reproduce, and patch vulnerabilities.
A GUI frontend for neovim.
High-performance extensible build system for reproducible multi-language builds.
Unified API development ecosystem for modern teams
System of record for how agents build software: Built-in rust harness & 20+ CLIs.
Synchronized viewing, theater, live streaming, video
The ripgrep of AI context: a zero-dependency C++23 CLI + MCP server for coding agents. Find what you want without reading the repo, then check you built what yo
Build beautiful, interactive API Docs with embeddable React or Web Components, powered by OpenAPI and Markdown.
Visual website builder for effortless web design
SCons - a software construction tool
Turn any MCP, OpenAPI, or GraphQL server into a CLI — at runtime, with zero codegen
Advanced Text Editor for Android
Generates documentation for your REST API from attributes
High Performace IDE for Jupyter Notebooks
Build AI (or any) apps with scalable microservices & microfrontends.
👻 Proxy API gateway for Kiro IDE & CLI (Amazon Q Developer / AWS CodeWhisperer). Use free Claude models with any client.
A cryptographically verifiable code review system for the cargo (Rust) package manager.
Scala language server with rich IDE features 🚀
Manages Unified Access to Generative AI Services built on Envoy Gateway
clangd language server
A compiler for APIs described by the OpenAPI Specification with plugins for code generation and other API support tasks.
Lightweight node server
A cross-platform C# editor and playground.
Developed mobile apps so easy and native with GUI 📱
CodeMirror 6 component for React. @codemirror https://uiwjs.github.io/react-codemirror/
A high-level build system based on llbuild, used by Xcode, Swift Playground, and the Swift Package Manager
Modern Laravel OpenAPI (Swagger) documentation generator. No PHPDoc annotations required.
Open source API management platform
Seamlessly adds a Swagger to Rails-based API's
Notion API client SDK, rewritten in Python! (sync + async)
The IDE for competitive programming :tada: | Fetch, Code, Compile, Run, Check, Submit :rocket:
Skybridge is a full-stack TypeScript framework for MCP Apps and ChatGPT Apps. Type-safe. React-powered. Platform-agnostic.
Code with Claude, Codex, Gemini, and more in one workspace
OpenAPI v3 code generator for go
AWS Lambda support for ASGI applications
A REST API library with better functionality, performance, and scalability than refit
Platformatic Open Source monorepo!
Self-Hosted API Management for Builders
Runs coding agents as a graph: one agent implements, independent agents review, failures go to repair, and nothing ships until the checks pass. Works with Codex
MCP server for GitLab: 100+ tools for projects, MRs, issues, pipelines, wikis and more via the GitLab REST/GraphQL API
The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀
Software build automation tool for Python.
Bichon – A lightweight, high-performance Rust email archiver with WebUI
A desktop app for isolated, parallel agentic development
CrossUI is a free Cross-Browser Javascript framework with cutting-edge functionality for rich web application. NEW: studio.crossui.com
Build APIs like code with Git-native workspace
Generate modern Python clients from OpenAPI
Terminal API client for HTTP, GraphQL and gRPC. Plain .http files you can diff and version, with workflows, mocks, profiling, tracing, OpenAPI import, SSH tunne
The Nu Html Checker (vnu)
Generate Swift client and server code from an OpenAPI document.
A node package wrapper for https://github.com/OpenAPITools/openapi-generator
An embeddable code editor for the browser 🍯
Lean mean Neovim machine, carefully crafted with :heart: Use with latest Neovim.
:snowflake: Visual editor for open FPGA boards
px0 is a review workbench and speed-first IDE built for AI-generated code. It turns your browser into a zero-latency console with native Git and GitHub integrat
typescript http client and server with zod validation
👨💻 Squircle CE is a fast and free multi-language code editor for Android
Automate Kubernetes Configuration Editing
Elixir plugin for JetBrain's IntelliJ Platform (including Rubymine)
🧡 The meta framework for code generation. Automate OpenAPI to type-safe TypeScript, Zod, and TanStack Query with a modular, plugin-based engine.
:fire: Serverless Devs: Serverless developer tool ( Serverless Devs: Serverless 开发者工具 )
Cloud native, ultra-high performance AI&API gateway, LLM API management, distribution system, open platform, supporting all AI APIs.🦄云原生、超高性能 AI&API网关,LLM API
Generate automated tests for your Node.js app via LLMs without developers having to write a single line of code.
The runtime behind every E2B stack: Cloud, Enterprise, and your own machine.
Tool for smooth git handover.
Generates swagger/openapi specification based on jsDoc comments and YAML files.
Team memory for engineers and their AI agents. Lives in your repo. Shared through Git.
DreamFactory is a secure, self-hosted enterprise data access platform that provides governed API access to any data source, connecting enterprise applications a
The Standard Webhooks specification
一款包含了 Prompt管理,Skill管理,Agent管理的一站式AI工具箱,助你高效管理提示词,一键分发skills ,一站式管理Agent资产,并实现云同步,备份,版本管理 | An all-in-one AI toolbox for prompt, agent, and skills management. R
AI-native software testing platform — one YAML test language covering API, Web, mobile, messaging, data, and LLM scenarios. Self-hostable.
Golang Fuego - Web framework generating OpenAPI 3 spec from source code - Pluggable to existing Gin & Echo APIs
Synthadoc: An open-source LLM knowledge compilation engine that turns raw documents into structured, local-first wikis. A transparent, human-readable alternativ
AI-native workspace for local shells and remote machines.Zero Webview, zero OpenSSL, zero telemetry, and no app subscription.
Modern, scalable tools. Exceptional developer experience.
An open, distributed platform as a service
An extensible and friendly code review tool for projects and companies of all sizes.
Industry-leading free, high-performance, AI and semantic technology Web Application Firewall and API Security Gateway (WAAP) - UUSEC WAF.
Lightweight multi-platform code editor designed for modern hardware with a focus on responsiveness and performance.
WireMock.Net is a flexible product for stubbing and mocking web HTTP responses using advanced request matching and response templating. Based on WireMock Java,
基于golang开发的网关。具有各种插件,可以自行扩展,即插即用。此外,它可以快速帮助企业管理API服务,提高API服务的稳定性和安全性。
Agent Skills that teach coding agents to write, review, and port idiomatic Rust, plus a tested clippy config. Works with Claude Code, Codex, Copilot, Cursor, an
🍃 Create Elm apps with zero configuration
🎈 Automate your WordPress development workflow.
Containerize your development and continuous integration environments. 🥂
A library that generates OpenAPI (Swagger) docs from Zod schemas
Open source CI/CD platform that's faster and costs less
The OpenAPI.NET SDK contains a useful object model for OpenAPI documents in .NET along with common serializers to extract raw OpenAPI JSON and YAML documents fr
Captures your web app's complete development timeline - server logs, browser events, console messages, network requests, and automatic screenshots - in a unifie
Agentic AI framework for enterprise workflow automation.
A Java wrapper to run Spring, Spring Boot, Jersey, and other apps inside AWS Lambda.
Event-driven application platform for Kubernetes
AI code review that learns your team's standards
Portable AI code quality reviews for Codex, Cursor, Copilot and other coding agents: six Agent Skills for architecture, technical debt, tests and remediation.
AKTools is an elegant and simple HTTP API library for AKShare, built for AKSharers!
⚒️ Redocly CLI makes OpenAPI easy. Lint/validate to any standard, generate beautiful docs, and more.
Firefox Profiler — Web app for Firefox performance analysis
Collection of offline first developer utilities available as non-electron desktop application. all in one place, cross-platform, 10MB app!
Apollo Client browser developer tools.
Turn Pi into el Gentleman: a senior-architect development harness with SDD/OpenSpec, subagents, strict TDD evidence, review guardrails, and skill discovery.
Marrying Rust and CMake - Easy Rust and C/C++ Integration!
Modern, secure, and elegant server control panel, alternative to OpenResty Edge and Nginx Proxy Manager.
Lightweight web framework for your serverless applications
the development environment for pros
OpenAPI Diff and Breaking Changes
AI agent workflows built natively into GitHub
Markdown defined task runner.
C++ Discord API Bot Library - D++ is Lightweight and scalable for small and huge bots!
A visual tool for inspecting and understanding your ESLint flat configs.
Bringing the Helix editor to the evil side
Parallel AI agent workspaces with Git and project context
⚡️ A fully-featured and blazing-fast JavaScript API client to interact with Algolia.
Improving GitHub's Forks list discoverability through automatic filtering. The project offers an online tool and a Chrome extension.
Unify APIs, databases, and services effortlessly
Smocker is a simple and efficient HTTP mock server and proxy
Your feedback loop with the agent
Agentic development harness for Claude Code — SPEC-driven plan/run/sync, TRUST 5 quality gates, model+effort routing, and Claude×GLM multi-LLM cost control. Sin
🏃⛰ Ultra fast monorepo script runner and build tool
Deploy, use, and share web apps on a server you control. Your apps, data, and infrastructure stay yours.
🐟 Yet Another bucket for lovely Scoop
Autoprompt is a coding-agent skill that cuts failures by 45% on agentic coding tasks.
Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests.
Open source CMS with powerful drag-and-drop builder
Open-source testing agent for UI, API, security, accessibility & visual QA
Complete WebSocket Traffic Control with advanced proxy, simulation, and blocking capabilities
One configuration for all your GraphQL tools (supported by most tools, editors & IDEs)
Apache Geb: Very Groovy Browser Automation
PHing Is Not GNU make; it's a PHP project build system or build tool based on Apache Ant.
Three.quarks is a general purpose particle system / VFX engine for three.js
Flexible CMS for developers, powerful for clients
Self-hosted AI agents and workflows across any channel
✨ Simple, free and open-source online code editor.
Open source AI code review for Claude Code and Codex, before you push. Scanners (SAST, secrets, dependencies, lint) on the lines you changed, then a separate re
Manage CI/CD pipelines from multiple providers (self hosted, desktop app and ios app )
Dev tools for python
Turn the agents you already use into a squad. Codex, Claude Code, Cursor, Hermes Agent and OpenClaw share one encrypted memory, pass work to each other, review
Run Linux desktops and apps on macOS with a native Metal Wayland compositor, Apple Container GUI, Waypipe, Docker/OrbStack, and rootless windows.
Self-hosted AI gateway for coding CLIs — one OpenAI/Claude/Gemini/Codex-compatible endpoint, with a multi-tenant web console, request logs, and spend quotas.
Create JavaScript libraries in a simple and intuitive way.
Welcome to the WSO2 API Manager source code! For info on working with the WSO2 API Manager repository and contributing code, click the link below.
The fast and secure Load Balancer / API Gateway / Reverse Proxy with built-in service discovery, GeoIP, WAF, bot protection and much more - https://pingoo.io
A clojure tool to navigate through your data.
Selects tests affected by changed files. Executes the right tests first. Continuous test runner when used with pytest-watch.
Lightning-fast React data grid for enterprise scale
TTT Editor (Terminal Text Tool): A real alternative to VS Code, Zed, and Sublime that runs in your terminal. A TUI that feels like GUI. Single binary, zero conf
ESB, SOA, REST, APIs and Cloud Integrations in Python
AI writes code. This automates everything else · 24 plugins · 49 agents · 44 skills · for Claude Code, OpenCode, Codex, Cursor, Kiro.
OWASP Web Recon & Directory Discovery Platform
OpenHPC Integration, Packaging, and Test Repo
Mock everything your AI app talks to — LLM APIs, MCP, A2A, AG-UI, vector DBs, search. One package, one port, zero dependencies.
A DeepSeek coding agent harness: persistent shell, Ultra subagents, auto approval, Chrome MCP and session telemetry
U++ is a C++ cross-platform rapid application development framework focused on programmer's productivity. It includes a set of libraries (GUI, SQL, Network etc.
Fast, local-first Git GUI built in Rust
Your One-Stop AI Novel Writing and Story Playing Workbench.
Open-source, self-hosted AI app builder — an agent builds real apps in isolated sandboxes on your own server, each live at a preview URL. Self-host in one comma
Debug your apps, find hydration errors, trace your network and more in your react-router app with these devtools
Twitter API for Laravel 5.5+, 6.x, 7.x & 8.x
🦕For NPM module authors that would like to support Deno but do not want to write and maintain a port.
All-in-one native macOS AI chat application for virtually any AI provider
A cross platform build and deployment automation system for building projects and executing deployment scripts using C# code.
Node.js & JavaScript SDK for Binance REST APIs & WebSockets, with TypeScript & browser support, integration tests, beautification & more.
:fire: Command-line tool to delete merged Git branches
Self-hosted lightweight PaaS solution to deploy and manage your applications on any VPS [Your own self-hosted Heroku, Vercel]
TickDB: AI-native real time stock API and market data API for US stocks, HK stocks, A-shares, forex, crypto, indices and commodities. Skill, CLI, MCP, REST API
Powerful friendly HTTP mock server & proxy library
the docker for Apache APISIX
Live messaging for coding agents
Sno Station Skills: 31 tested skills that turn Claude Code and Codex into one working team. Cross-vendor peer review, automatic handoff when an agent hits its q
Unit testing and build system for C projects
Open-source, self-hosted alternative to Composio, Nango, Merge.dev, and Arcade.dev for AI agent integrations. Run GitHub, Slack, Hacker News, and custom HTTP ac
A simple and extensible behavioural testing library for Go. You can use api test to simplify REST API, HTTP handler and e2e tests.
Simulate API failures, throttling, and chaos — all from your command line.
Build complete web apps with integrated graph database
CLion plugin for Bazel projects
:boom: Test REST, GraphQL APIs
A delightfully rich and dynamic link-in-bio.
Cloud-agnostic managed Kubernetes
A remote cache for Bazel
A Python library that interfaces with the MediaWiki API. This is a mirror from gerrit.wikimedia.org. Do not submit any patches here. See https://www.mediawiki.o
Captain - Convert your Git workflow to Docker :whale: containers
DavMail POP/IMAP/SMTP/CalDAV/CardDAV/LDAP Exchange and Office 365 Gateway - Synced with main subversion repository at
A CLI tool to get help with CLI tools 🐙
Re-Editor is a powerful lightweight text and code editor widget.
A terminal-first agentic development environment for agentic coding. Build for CLI/TUI agent. Runtime for Coding Agent, Tmux alternative
See what your coding agents did and what it cost. Breaks each task down into work steps — tools used, files changed, tests run, time and tokens spent. Local-fir
The ultimate JavaScript plugin loader, build your unmatched LoL Client.
Official master for the Greenmail project
Cell is a Serverless First, componentized, platform-independent progressive application framework based on TypeScript. Cell 是基于 TypeScript 的 Serverless First、组件
A Realtime API Gateway used with NATS to build REST, real time, and RPC APIs, where all your clients are synchronized seamlessly.
A platform that helps you deploy services with one click.
Chapar is a simple and easy to use api testing tools aims to help developers to test their api endpoints. it support http and grpc protocols.
AI coding agent that sees your live app and edits code
Catch and fix the code-quality issues AI coding agents leave behind - dead code, unsafe casts, swallowed errors, duplication, security risks, and more. 50+ dete
Repeatable agentic engineering. The workflow layer that turns AI coding agents into a disciplined factory: durable specs, fresh-context workers, adversarial cro
An open-source automation tool that simplifies the deployment of your apps on Kubernetes.
Framework-neutral foundation for building generic DevTools.
⚡️ A fully-featured and blazing-fast PHP API client to interact with Algolia.
A Modern Code Editor for Android
A delightful and complete interface to GitHub's amazing API
Port OpenAPI Specs to Postman Collections, inject test suite and run via Newman 👨🏽🚀
Build TypeScript TUI backed by fast native rendering engine
Backend.AI is a streamlined, container-based computing cluster platform that hosts popular computing/ML frameworks and diverse programming languages, with plugg
HTTP mocking library for Rust
An execution-authority gateway for AI agents and APIs. It intercepts consequential HTTP actions, asks Decionis whether they are authorized, and forwards exactly
Evidence-grounded repository audit CLI - deterministic scanner, MCP server, live dashboard, and a GitHub Action that posts PR diffs.
A Discord API wrapper library made in C
Self-hosted, secure tunnel server in Rust. Expose local HTTP/HTTPS/TCP/UDP services to the public internet via TLS-encrypted WebSocket. Open-source, pay-as-you-
Java-based API Gateway bridging legacy and modern APIs with WSDL-to-OpenAPI, SOAP-to-REST, XML, OAuth2, and GraphQL.
runn is a package/tool for running operations following a scenario.
Visual regression testing for seamless UI development
Fast and light-weight API proxy firewall for request and response validation by OpenAPI specs.
Microservices library - scalecube-services is a high throughput, low latency reactive microservices library built to scale. It features: API-Gateways, service-d
GMGN OpenAPI skills for AI Agent — query tokens, wallets, and market data, and execute on-chain trades across Solana, BSC, and Base.
Alternative Haskell Infrastructure for Nixpkgs
The fastest developer workflow for every AI coding agent. Live status, quick prompts, worktrees, and diff review from one tmux TUI.
🕷️ The fastest open-source AI Gateway and LLM Gateway — one binary with built-in console to route, secure, budget and observe every LLM call across OpenAI, Ant
A TypeScript-native acceptance testing framework that gives your Playwright Test, WebdriverIO, or Cucumber test suite the architecture it needs to scale.
REST API Testing Tool for all levels in a Test Pyramid
Opinionated platform that runs on Kubernetes, that takes you from App to URL in one step.
MCP server for Coolify — 42 optimized tools for managing self-hosted PaaS through AI assistants
Create low-latency, interactive user experiences for stateless microservices.
🚀 AI-powered code review tool for GitHub, GitLab, Bitbucket Cloud, Bitbucket Server, Azure DevOps and Gitea — built with LLMs like OpenAI, Claude, Gemini, Olla
Help your AI agent finish the job: solve the right problem, keep changes focused, and show what was verified. For Claude Code and Codex.
A build tool for Erlang that just works.
The open-source Render alternative — AI-native. Git push → build → deploy on your own infrastructure; agents are first-class users.
A simple code editor with syntax highlighting.
Lightweight Java agent for traffic capture and replay, enhancing testing and debugging.
Based on the proxy gateway service of dubbo-go, it solves the problem that the external protocol calls the internal Dubbo cluster. At present, it supports HTTP
Insipired by aws-serverless-express to work with Fastify with inject functionality
Write your pipelines in C# !
Build and deploy AI agents through visual workflows
LockKnife: The Ultimate Android Security Research Tool. A unified TUI workspace and headless CLI for deep Android security research, built for researchers and h
Client for HashiCorp's Vault
Protocol for IDEs and build tools to communicate about compile, run, test, debug and more.
Python Docker API client based on asyncio and aiohttp
SDKs for CoinAPI & FinFeedAPI
📦 Bundles your TypeScript libraries faster than you can say "bundle"
Multi-harness control plane for Claude Code, Codex, Cursor, and OpenCode: quota-aware rotation across multiple Claude/Codex subscriptions, shared thread context
Python client implementation for qBittorrent's Web API
Cross-platform config file CLI toolchain. Validates syntax, schema compliance, and formatting across 18 different configuration file types. Written in Go.
Local codebase intelligence CLI + MCP server for AI coding agents: SQLite code graph, 28 languages, 287 commands, 246 MCP tools, change-safety gates, audit evid
A Git source code management tool powered by Elixir with easy installation & high extensibility.
A federated GraphQL API gateway
Mikrotik RouterOS API PHP client for your applications
Autonomous AI dev-team bot
mocker-api that creates mocks for REST APIs. It will be helpful when you try to test your application without the actual REST API server.
🌞 🦀 🌙 Weather companion for the terminal. Rust app.
Craft AAA web apps that delight your users
Open-source GraphQL federation platform
Unified API, event, and AI agent management platform
Simplify project management for developers
Low-code and no-code platform for business apps
Connect APIs, databases, and streams without glue code
Visual website builder and CMS you can self-host
Self-hosted AI coding agent that opens real PRs
Deploy web apps with automated CI/CD and full infrastructure control
OTA updates for Capacitor apps without app store delays
Secure, encrypted forms with advanced features
Secure AI API management for iOS apps with DeviceCheck
Self-hosted Git forge that's lightweight and secure
Frequently asked questions
How many open source Developer Tools tools are there?
This registry tracks 569 open source Developer Tools projects, with 7,788,429 combined GitHub stars. The list is ranked by stars and refreshed nightly.
What is the most popular open source Developer Tools project?
rea leads this category with 422,352 GitHub stars, followed by ECC.
Are these Developer Tools tools free?
Yes — every project listed here is open source. Some also offer paid hosted versions alongside the free self-hosted option; the licence for each project is shown on its card.