Chrome GitHub Repositories (2026) · Open Source Tools

Chrome DevTools for coding agents

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

:electron: Build cross-platform desktop apps with JavaScript, HTML, and CSS

Web Extension for saving a faithful copy of a complete web page in a single HTML file

A simple zero-config tool to make locally trusted development certificates with any names you'd like.

:cloud: Sync your bookmarks privately across browsers and devices

A developer-friendly API for converting many document formats into PDF files, and more!

Chrome Extensions Samples

JavaScript API for Chrome and Firefox

Restyle any website

Browser Tamer - browser proxy for Windows and Linux with autodetection, rules, scripting. 100% local, no tracking, no registration. Made with love and care, not AI and tracking.

Fast, reliable download accelerator and video downloader since 2013

DuckDuckGo Privacy Essentials browser extension for Firefox, Chrome.

⬇️ A simple all-in-one CLI tool to download EVERYTHING from a URL (like youtube-dl/yt-dlp, forum-dl, gallery-dl, simpler ArchiveBox). 🎭 Uses headless Chrome to get HTML, JS, CSS, images/video/audio/subtitles, PDFs, screenshots, article text, git repos, and more...

Webextension tool for Odoo

Headless Chrome .NET API

Headless Chrome Ruby API

🍁 Hide the bookmark bar, use Maple Bookmarks to surf smoothly.

A Download Manager that speeds up your downloads

This userscript for YouTube offers 250+ layout changes and features such as tab view, speed control, miniplayer support, export transcripts, square design, auto-theater mode, and much more—all easily customizable via settings panels.