Stopwatch
Precise stopwatch with hundredths-of-a-second resolution. Record lap times and split times, then export your results as a CSV file.
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Laps
How to use
- Click Start to begin timing. The display counts up in minutes, seconds, and hundredths.
- Click Lap to record a split time without stopping the clock. Each lap shows its duration and running total.
- Click Reset to clear all times, or Export CSV to download your lap data.
Frequently asked questions
- Is this stopwatch free?
- Yes, completely free with no signup and no usage limits.
- Does it send any data to a server?
- No. Everything runs in your browser — your lap times never leave your device.
- Does it work on mobile?
- Yes. Works in Safari, Chrome, and Firefox on iOS and Android with large touch-friendly buttons.