Top JS GitHub Repositories & Tools (2026)

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

Sketch Material 3 Expressive screens in the browser and turn them into vibe-coding prompts.

Get your documents ready for gen AI

High performance self-hosted photo and video management solution.

Composable, accessible components with thoughtful defaults. Build your own component library with code you can customize, extend, and make your own.

A DeepSeek coding agent harness: persistent shell, Ultra subagents, auto approval, Chrome MCP and session telemetry

An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

🇨🇭 A React renderer for Three.js

JSON.parse with hard limits on nesting depth, key count, string length and input size. Refuses parser bombs before they are allocated.

FastAPI framework, high performance, easy to learn, fast to code, ready for production

Node fetch with hard size, compression-ratio and time limits. Stops gzip bombs mid-stream.

An open-source, self-hostable PaaS alternative to Vercel, Heroku & Netlify that lets you easily deploy static sites, databases, full-stack applications and 280+ one-click services on your own servers.

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

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

Aesthetic, minimalist platform for learning Japanese inspired by Duolingo and Monkeytype, built with Next.js and sponsored by Vercel. Beginner-friendly with plenty of good first issues - all contributions are welcome!

Self-hosted family planner - tasks, calendars, shopping, meals, budget. Your data, your server.

A powerful, privacy-friendly open source web analytics tool that runs entirely on Cloudflare.

Coding articles to level up your development skills

A highly customizable homepage (or startpage / application dashboard) with Docker and service API integrations.