Date & Time
Stopwatch & Timer
A full-featured stopwatch with lap recording, and a countdown timer — all in your browser.
00:00:00.0
Chronomètre en ligne avec tours et minuterie — sans installation
Fonctionnalités
Stopwatch with Laps
Record lap times with each click and review your complete lap history.
Countdown Timer
Set any duration manually or choose from quick presets (1, 5, 10, 25, 30, 60 minutes).
Audio Alert
Plays a notification sound when the countdown reaches zero.
Millisecond Precision
Stopwatch displays hours, minutes, seconds, and milliseconds.
Comment utiliser
- Switch to Stopwatch or Countdown tab.
- For stopwatch: click Start, use Lap to record splits, Stop to pause, Reset to clear.
- For countdown: enter a time or pick a preset, then click Start.
- The timer will alert you when the countdown ends.
FAQ
Does it work when the tab is in the background?▾
Yes — the timer continues running even when you switch tabs, though browser throttling may reduce update frequency.
Can I set a custom countdown time?▾
Yes — enter any hours, minutes, and seconds directly in the countdown input fields.
Timer Use Cases
- 25-minute Pomodoro work sessions.
- Interval training: 30s work / 30s rest.
- Cooking: countdown pasta for exactly 8 minutes.
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