Stopwatch
Precision stopwatch with start, stop, lap times, and reset — mm:ss.cs display.
About this tool
A stopwatch you can trust needs two things: precise timing and a lap table you can actually read. This one updates on every animation frame for smooth centisecond display, and records each lap with both the lap split and the running total.
It runs entirely in your browser tab — no app install, no account, and it keeps working if your connection drops.
How to use
- Click Start to begin timing.
- Click Lap to record a split without stopping.
- Click Stop to pause, Reset to clear everything.
Frequently asked questions
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