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Stopwatch

Precise timing with laps.

Runs in your browser
ShortcutsStart/stopSpaceLapLResetR

About

Stopwatch tracks elapsed time with lap recording, so you can capture split times for intervals, workouts, or timed tasks without losing the running total. Each lap shows its delta from the previous one, and the fastest/slowest laps are highlighted automatically. Laps export as a CSV file for further analysis. Runs entirely client-side — nothing you time is recorded anywhere but your own device.

Frequently asked

Can I export my lap times?
Yes — the lap list has a CSV export button that downloads all recorded laps with their split and cumulative times.
Does it lose accuracy if I switch tabs?
No. It tracks elapsed time using timestamps rather than a simple interval counter, so switching tabs or the browser throttling background timers doesn't cause drift.