freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

Visual Studio Code

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

An enterprise-class UI design language and React UI library

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

Model Context Protocol Servers

A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScript 🚀

🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.

Easy to maintain open source documentation websites.

Realtime application framework (Node.JS server)

Appwrite® - The developers' cloud

Presentation Slides for Developers

Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.

The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature packed, and markdown compatible.

The headless rich text editor framework for web artisans.

Enhanced ChatGPT Clone: Features Agents, MCP, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message…

Web framework built on Web Standards

Babylon.js is a powerful, beautiful, simple, and open game and rendering engine packed into a friendly JavaScript framework.

Playwright MCP server

🚀 Generate GitHub profile README easily with the latest add-ons like visitors count, GitHub stats, etc using minimal UI.

Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.

🎒 Token-Oriented Object Notation (TOON) – Compact, human-readable, schema-aware JSON for LLM prompts. Spec, benchmarks, TypeScript SDK.

👻 Primitive and flexible state management for React

Scan for React performance issues and eliminate slow renders in your app

Fluent UI web represents a collection of utilities, React components, and web components for building web applications.

The TypeScript AI agent framework. ⚡ Assistants, RAG, observability. Supports any LLM: GPT-4, Claude, Gemini, Llama.

The instant on-demand atomic CSS engine.

Run compilers interactively from your web browser and interact with the assembly

Optimizing compiler for React