Top JAVASCRIPT GitHub Repositories & Tools (2026)

Curated list of project-based tutorials

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

High performance self-hosted photo and video management solution.

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

The library for web and native user interfaces.

Codebase intelligence for TypeScript and JavaScript. Free static analysis of code and styles: unused code, duplication, circular deps, complexity hotspots, architecture boundaries, design-system drift. Optional paid runtime layer (Fallow Runtime): hot-path review and cold-path deletion evidence from real production traffic.

Dynasty Warriors-style voxel action game in the browser: Zhao Yun vs 300 soldiers. Three.js, no build step.

An open-source framework for making universal native apps with React. Expo runs on Android, iOS, and the web.

A modern runtime for JavaScript and TypeScript.

Official electron build of draw.io

Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown

Coding articles to level up your development skills

☁️ Nextcloud server, a safe home for all your data

Appwrite® - complete cloud infrastructure for your web, mobile and AI apps. Including Auth, Databases, Storage, Functions, Messaging, Hosting, Realtime and more

JavaScript 3D Library.

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

The Open Framework for Building Agents

Programmable text utility that mac needs

Coverage, security and code quality for coding agents