Reliable timing
The timer counts against your device's clock rather than adding up ticks, so it stays accurate when the tab is in the background, the laptop is busy or the screen is dimmed — browsers slow down background tabs, which makes naive timers drift. If you reload or close the page, a running countdown continues where it left off. The remaining time also shows in the browser tab's title.
Features
- One-click presets from 1 to 60 minutes, or any time up to 99 hours.
- A ring that turns amber in the last 20% and red in the last 10 seconds, readable from across a room in full-screen mode.
- An alarm generated in the browser (no audio files), repeating until you stop it, and optional beeps during the final ten seconds.
- Keyboard shortcuts for presenters: Space, R, F.
Uses: exams and classroom activities, presentations and meeting time-boxes, cooking, workouts, Pomodoro-style focus sessions (25 minutes). To measure how long something takes instead, use the timer with history.
Browsers only allow sound after you've interacted with the page — pressing Start counts — so the alarm will play. Check your device isn't muted.
Is my data uploaded?
No. The timer runs in your browser, so nothing you add is sent to gratistools.be. See the privacy page for details.