Js GitHub Repositories (2026) · Open Source Tools

The Frontend Stack for Agents & Generative UI. React, Angular, Mobile, Slack, and more. Makers of the AG-UI Protocol

Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you build AI agents that turn intent into action.

Lingo - Interactive platform for language learning.

Generative UI SDK for React

https://wiki.seeedstudio.com Seeed Studio Wiki source code

✨ The fundamental numerical library for JavaScript and TypeScript. ✨                   ⭐️ Star to support our work!

Highly effective, super-configurable, well-tested web page minifier (enhanced successor to HTML Minifier)

Ruby ♥︎ JavaScript

🤪 A list of funny and tricky JavaScript examples

Standard Library

tsParticles - Easily create highly customizable JavaScript particles effects, confetti explosions and fireworks animations and use them as animated backgrounds for your website. Ready to use components available for React.js, Vue.js (2.x and 3.x), Angular, Svelte, jQuery, Preact, Inferno, Solid, Riot and Web Components.

Win12 Online

An isomorphic Javascript client for Supabase. Query your Supabase database, subscribe to realtime events, upload and download files, browse typescript examples, invoke postgres functions via rpc, invoke supabase edge functions, query pgvector.

A components library built with Tailwind CSS that works with any web stack.

Go minifiers for web formats

Solana JavaScript SDK

Javascript Virtual Keyboard - Customizable, responsive and lightweight

CSS & JavaScript minifier, in PHP. Removes whitespace, strips comments, combines files (incl. @import statements and small assets in CSS files), and optimizes/shortens a few common programming patterns.

parquet file parser for javascript

JS runtime lolz