Online timer / countdown
Set a free online timer or countdown with sound alerts, presets, and fullscreen mode.
Stopwatch
Use a free online stopwatch with start, pause, reset, lap times, and fullscreen mode.
00:00:00
Press Start or S to begin
S start · P pause · L lap
| Lap | Split | Total |
|---|
How to use Stopwatch
Track elapsed time with a simple online stopwatch. Start, pause, reset, and record lap splits. Use fullscreen for a large display during workouts, meetings, or experiments.
- Millisecond-precision lap times
- Lap list with split and total columns
- Fullscreen mode
- Keyboard shortcuts: S start, P pause, L lap
Stopwatch FAQs
Is Stopwatch free?
Stopwatch is a free online tool on ReallyUseful.Tools. No account is required.
Does Stopwatch run in my browser?
Stopwatch is designed to run in your browser where supported, so files can stay on your device instead of being uploaded to a server.
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