The React Framework
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A completely customizable framework for building rich text editors. (Currently in beta.)
A modified web browser that helps in responsive web development. A web developer's must have dev-tool.
Build the best interview map. The current content includes JS, network, browser related, performance optimization, security, framework, Git, data structure, algorithm, etc.
♏ 一款浏览器端的 Markdown 编辑器，支持所见即所得（富文本）、即时渲染（类似 Typora）和分屏预览模式。An In-browser Markdown editor, support WYSIWYG (Rich Text), Instant Rendering (Typora-like) and Split View modes.
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Self-hosted collection of powerful web-based tools for everyday tasks. No ads, no tracking, just fast, accessible utilities right from your browser!
:pizza: Peer-to-peer file transfers in your browser
Sketch Material 3 Expressive screens in the browser and turn them into vibe-coding prompts.
Low-code backend platform. Manage database on spreadsheet-like UI and build cloud functions workflows in JS/TS, all in your browser.
The cross-browser extension framework.
Privacy-first password manager with built-in email aliasing. Fully encrypted and self-hostable.
Ovis (formerly herdr web UI): free, open-source browser and phone client for herdr. Chat and live terminal for Claude Code, Codex and every agent pane, remote PCs over SSH, web push alerts
Modern file uploading - components & hooks for React
⚡️ Web Performance Research
animated page transition for major ssr frameworks and browsers, including Safari
In Browser PostgreSQL Playground, no server, just client and pglite (postgresql wasm)
The AI agent that lives in your framework/browser
Cross-browser screenshot testing tool for Storybook with fancy UI Runner.
Open source browser extension starter kit 🧩
Open-source DeepWiki alternative — generate comprehensive wiki documentation for any codebase from terminal or browser
Remote control for your pi coding agent. Pi-Remote mirrors live pi terminal sessions to any browser, so you can watch runs, answer prompts, and send commands from your phone — end-to-end encrypted over a self-hosted relay.
Share files directly from the browser using IPFS.
The mypy playground. Try mypy with your web browser.