Kill duplicate tabs instantly. Stay focused.

What It Does

• Badge Counter - Shows how many duplicate tabs you have
• One-Click Cleanup - Close all duplicates with one button
• Search - Filter open tabs by title or URL with keyboard navigation
• Domain Groups - Tabs grouped by site, sortable A-Z / Most / Recent
• Merge & Close per Domain - Consolidate or clear all tabs from a site
• Undo - Restore tabs you just closed
• Keyboard Shortcut - Cmd+U (Mac) or Ctrl+U (Windows/Linux)
• Real-Time Updates - Badge updates automatically as you browse

Screenshots

Stats header (tabs / duplicates / domains), search bar, view toggle, duplicates section with sort options, and domain-grouped tab list with per-domain Merge and Close actions.

Installation

1. Clone and Build

git clone https://github.com/jeanlucaslima/ato.git
cd ato
npm install
npm run icons
npm run build

2. Load in Chrome

1. Open chrome://extensions
2. Enable Developer mode (toggle in top right)
3. Click Load unpacked
4. Select the dist/ folder

3. Use It

• Press Cmd+U / Ctrl+U to open the popup
• Or click the ATO icon in your toolbar
• Click Close duplicates to remove all duplicate tabs

Development

# Watch mode (auto-rebuild on changes)
npm run dev

# Run tests
npm test

# Build for production
npm run build

After changes, click the refresh icon on chrome://extensions to reload.

Project Structure

src/
├── manifest.json           # Extension configuration
├── background/
│   └── service-worker.js   # Tab monitoring, badge updates
├── popup/
│   ├── popup.html          # Popup UI
│   ├── popup.css           # Styles
│   └── popup.js            # Popup logic
├── shared/
│   ├── tab-utils.js        # Shared utility functions
│   └── tab-utils.test.js   # Tests
└── assets/icons/           # Extension icons

License

MIT