Free Stopwatch
Precision stopwatch with laps.
0:00.00
Space start/stop · L lap · R reset
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How to use the Stopwatch
- 1Start with Space or the button.
- 2Press L for laps.
- 3Reset with R.
Features
- Centisecond precision
- Lap & split times
- Keyboard shortcuts
- Keeps running when tab is hidden
Frequently Asked Questions
Is it accurate?
It uses monotonic server-independent timing (performance.now), accurate to ~10 ms.
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About the Stopwatch
A precise online stopwatch with lap times, split differences and keyboard controls. The Stopwatch runs entirely in your browser — your data is processed locally and never uploaded to a server. Explore more Everyday tools or browse all free online tools.