Online Stopwatch
A precise stopwatch with laps, lap times and splits to the hundredth of a second.
Everything is worked out in your browser; nothing is sent anywhere or saved.
How to use
- Press Start to begin timing.
- Press Lap to record a lap without stopping.
- Press Stop to pause, then Resume or Reset.
About Online Stopwatch
The Online Stopwatch times to the hundredth of a second using your browser's high-resolution clock. Each lap shows its own time and the total split, with the fastest and slowest laps highlighted once you have three or more. It runs entirely in your browser, with nothing sent anywhere or saved.
FAQs
What is the difference between lap and split?
Lap time is how long that lap took; split is the total time from the start to the end of that lap.
Does it stay accurate in a background tab?
Yes. Elapsed time comes from timestamps, so the display catches up the moment you return.
Are my laps saved?
No. They clear when you reset or leave the page.
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