Best open source JavaScript repositories on GitHub

vercel/next.js

JavaScript

The React Framework

mrdoob/three.js

JavaScript

JavaScript 3D Library.

expressjs/express

JavaScript

Fast, unopinionated, minimalist web framework for node.

Leonxlnx/taste-skill

JavaScript

Taste-Skill - gives your AI good taste. stops the AI from generating boring, generic slop

webpack/webpack

JavaScript

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. Through "loaders", modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.

Mintplex-Labs/anything-llm

JavaScript

Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience

pbakaus/impeccable

JavaScript

The design language that makes your AI harness better at design.

mozilla/pdf.js

JavaScript

PDF Reader in JavaScript

GoogleChrome/lighthouse

JavaScript

Automated auditing, performance metrics, and best practices for the web.

github/awesome-copilot

JavaScript

Community-contributed instructions, agents, skills, and configurations to help you make the most of GitHub Copilot.

Anil-matcha/Open-Generative-AI

JavaScript

Unrestricted Open-source alternative to AI video platforms — Free AI image & video generation studio with 600+ models (Flux, Midjourney, Kling, Sora, Veo). No content filters. Self-hosted, MIT licensed.

lutzroeder/netron

JavaScript

Visualizer for neural network, deep learning and machine learning models

fanmingming/live

JavaScript

✯ 可直连访问的电视/广播图标库与相关工具项目 ✯ 🔕 永久免费 直连访问 完整开源 不断完善的台标 支持IPv4/IPv6双栈访问 🔕

framework7io/framework7

JavaScript

Full featured HTML framework for building iOS & Android apps

PipedreamHQ/pipedream

JavaScript

Connect APIs, remarkably fast. Free for developers.

WebGoat/WebGoat

JavaScript

WebGoat is a deliberately insecure application

firebase/functions-samples

JavaScript

Collection of sample apps showcasing popular use cases using Cloud Functions for Firebase

bigbluebutton/bigbluebutton

JavaScript

A complete web conferencing system for virtual classes and more!

Stremio/stremio-web

JavaScript

Stremio - Freedom to Stream

Piebald-AI/claude-code-system-prompts

JavaScript

All parts of Claude Code's system prompt, 27 builtin tool descriptions, sub agent prompts (Plan/Explore/Task), utility prompts (CLAUDE.md, compact, statusline, magic docs, WebFetch, Bash cmd, security review, agent creation). Updated for each Claude Code version.