Online Stopwatch — Free Browser Stopwatch with Lap Times
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Press Start to begin
Shortcuts: Space Start/Stop · L Lap · R Reset
About the stopwatch
This stopwatch counts up from zero with millisecond precision. Tap Lap while running to record split times — your fastest and slowest laps are highlighted automatically.
Will the time keep counting if I switch tabs?
Yes. We measure against the system clock, not just the JavaScript tick rate, so the time stays accurate even if the tab is backgrounded.
Can I export lap times?
Lap times are visible in the table above. You can copy them or take a screenshot — they're kept in memory until you reset.