Online Stopwatch with Laps and Splits
A precise online stopwatch with lap and split times, keyboard shortcuts and CSV export. Free, no sign-up, and your files never leave your device.
Free, with no sign-up and no watermark. The file is processed in your browser and never uploaded.
A precise stopwatch with lap and split times, fastest and slowest laps highlighted, keyboard shortcuts and CSV export.
Step by step
- Start: Press Start or the Space bar.
- Record laps: Press Lap (or L) at each split.
- Stop and resume: Press Stop, then Resume to continue.
- Export: Use Export laps (CSV), or Reset (R) to start again.
Handy for
Running and swimming
Time laps and compare splits.
Presentations
Practise talks against the clock.
Cooking
Track how long a step really takes.
Experiments
Record timings for repeated trials.
Good to know
Shortcuts work whenever you’re not typing in a field.
Questions
How accurate is it?
It measures with the browser’s high-resolution clock and shows hundredths of a second. Display updates may pause in a background tab, but the elapsed time stays correct.
Is anything sent to a server?
No. Every calculation runs in your browser, so the numbers you type never leave your device. The page keeps working offline once it has loaded.
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