Tab Group Timer

Automatically tracks how much time you spend in each Chrome tab group. All data stays on your device.

Tab Group Timer automatically tracks how much time you spend actively working in each Chrome tab group, giving you real visibility into where your time actually goes — no manual stopwatches, no spreadsheets. How it works: Organize your work into Chrome's native tab groups, one per task or project. The extension detects when a group is active and accumulates time automatically, with no need to start or stop anything manually. Features: - Automatic tracking by tab group, not individual tabs - Zero setup: works with the tab groups you already use in Chrome - All data is stored locally in your browser — nothing is sent to external servers - Lightweight, with minimal permissions Privacy first: This extension does not collect, transmit, or share any data. All time tracking is stored exclusively in your browser. Open source: https://github.com/jormiquis/tab-group-timer