Workflow DevKit: Build durable, reliable, and observable apps and AI Agents in TypeScript

MentraOS is how you build smart glasses apps. And it's 100% open source. Get captions, AI assistant, notifications, translation, and more. Devs now write 1 app that runs on any pair of smart glases.

🏎️ JavaScript Hypertext Preprocessor. [experimental]

🦀 How to minimize Rust binary size 📦

ESLint plugin that enforces our markdown preferences.

The hypermedia framework.

Chrome DevTools for coding agents

Chrome Extension: YCS. Search for comments and authors in YouTube videos

The open-source reactive database for app developers

Pure TypeScript media toolkit for reading, writing, and converting video and audio files, directly in the browser.

A Swiss Army knife for service workers.

Run any GUI app in the terminal❗

A drop-in replacement for react-markdown, designed for AI-powered streaming.

Enhanced picture in picture video player, support subtitle, danmaku etc web extension. 增强版画中画播放器，可以播放、发送弹幕，支持字幕，键盘控制进度等功能的浏览器插件

scoop tab completion, work with powershell

bilibili 直播实时切片工具

The open source coding agent.

pnpm specifications

Ruler — apply the same rules to all coding agents

🔥 Clone and recreate any website as a modern React app in seconds

A place to keep track of ongoing efforts to improve performance in the JS ecosystem

A standalone version of the readability lib

A CLI tool for analyzing Claude Code/Codex CLI usage from local JSONL files.

Convert MHTML to HTML

A modern version of Monaco Editor.

We all edit.

Windows Subsystem for Linux

DevTools for Vite (Rolldown). Working in Progress

A triple-linked lists based DOM implementation.