What it is
A browser-based count-up stopwatch that runs entirely on your device with millisecond-grade timing accuracy, plus an unlimited lap log that records each split.
Stopwatch
Count up from zero
00:00:00.0
Free Online Stopwatch with Lap Times — Millisecond Precision
A precision online stopwatch with tenth-of-a-second accuracy, unlimited lap recording and start/pause/reset controls. Perfect for workouts, cooking, coding sprints, interval training, presentations and any timing task that needs to be exact.
Key features
- 0.1 second precision
- Unlimited lap times
- Start / pause / reset
- Running-indicator pulse ring
- Scrollable lap history
Best for
Runners, CrossFitters, cooks, and anyone who needs a reliable online stopwatch without downloading an app.
Frequently asked questions
How accurate is the stopwatch?
The stopwatch is accurate to one tenth of a second.
Does it keep running in the background?
Yes. As long as the tab remains open, the stopwatch continues counting even if you switch to another tab or app.
Can I record lap times?
Yes — click Lap at any moment to record a split. Every lap is timestamped and stored in the lap log below the display.
Widget Library