Online Stopwatch
A precise online stopwatch with lap times, start, stop and reset.
Sometimes you just need a stopwatch and your phone's is buried three taps deep. This one is a click away in any browser tab — for timing a workout, a cooking step, a presentation rehearsal, or how long a task actually takes versus how long it feels.
Start, stop and resume with a button, and capture lap times to record splits without stopping the clock. It counts to hundredths of a second and keeps running accurately even if the tab is backgrounded, because it measures elapsed real time rather than counting ticks.
How to use Online Stopwatch
- 1
Press start
The clock begins counting up.
- 2
Capture laps
Record split times without stopping.
- 3
Stop or reset
Pause and resume, or clear to zero.
Features
- Hundredth-of-a-second precision
- Lap / split time capture
- Accurate even when the tab is inactive
Frequently asked questions
Common mistakes to avoid
- Closing the tab expecting the time to persist — it resets on reload.
- Relying on it for officiated timing; browser timing is precise but not certified.
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