Online Stopwatch
A simple, accurate stopwatch for workouts, cooking, studying, or timing anything. Record lap times and reset with one tap. Runs entirely in your browser.
00:00.00
Accurate to the hundredth of a second
This stopwatch uses the browser's high-resolution timer, so the elapsed time stays accurate even if the display updates a little less often. Hit Lap to record a split without stopping the clock — handy for timing repeated sets, intervals, or laps around a track.
Uses
- Fitness — time intervals, rest periods, and rounds.
- Cooking — track steeping, resting, or baking stages.
- Study & work — time focused sessions.
Recommended
Frequently asked questions
Does the stopwatch keep running in a background tab?
Yes — it measures elapsed time from timestamps, so the total stays correct even if the tab is inactive for a while.
Can I record lap times?
Yes. Press Lap while running to record a split; each lap is listed below the timer.
Is it accurate?
It uses the browser's high-resolution clock and shows hundredths of a second.