Stopwatch
Accurate timing with laps.
🔒 Processed on your device — nothing is uploaded.
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About the Stopwatch
An accurate stopwatch with lap times that runs in any browser. Start, pause and record laps to time runs, experiments, speeches or tasks, then export your laps as a CSV file.
When to use it
- Timing running laps and workouts
- Measuring how long tasks take
- Practising speeches and presentations
- Recording reaction times in science experiments
Tips for the best results
- Press the space bar to start and pause
- Each lap shows both the lap time and the total time
- Export laps to open them in Excel or Google Sheets
How to use the Stopwatch
- Open the Stopwatch.
- Set it up the way you like.
- Everything is saved or processed on your own device.
Stopwatch FAQ
Is the Stopwatch free?
Yes. The Stopwatch is completely free with no sign-up, no daily limit and no watermark.
Is it safe to use the Stopwatch with private files?
Yes. The Stopwatch runs entirely inside your web browser, so your files and text are never uploaded to any server.
Does the Stopwatch work on mobile?
Yes. It works in Chrome, Safari, Edge and Firefox on Android, iPhone, Windows and Mac.