Hover over code on any webpage to see documentation. Like your IDE, but everywhere.

Works on documentation sites and AI chat apps like ChatGPT and Claude.

Note: This extension is coming to the chrome web store soon and will be linked here when available.

bun install && bun run build

Navigate to chrome://extensions → Enable Developer Mode → Load Unpacked → Select the dist_chrome folder

Click the extension icon, go to Settings, and add your OpenRouter API key or configure a custom OpenAI client compatible endpoint.

Set which websites the extension runs on using URL patterns (e.g. *://*.github.com/*).

bun run dev      # Dev server
bun run build    # Production build and lint
bun run lint     # Lint
bun run format   # Format
bun run package  # Build and create hover-extension.zip for Chrome Web Store

Optional: Create .env to bundle an API key into dev builds:

VITE_OPEN_ROUTER_API_KEY=your-key

See scripts/README.md for evaluation tools.

See TASKS.md for a list of known issues and planned improvements.

See PRIVACY.md for details on data handling.

MIT