Stopwatch
Runs in your browser. Nothing you type is sent anywhere.
How to use the stopwatch
- Press Start, or the space bar.
- Press Lap, or L, at each lap. The fastest and slowest laps are marked.
- Press Stop. Press Resume to carry on, or Reset, or R, to clear.
- Press Copy laps to paste them into a spreadsheet.
Questions
Do my laps survive a reload?
Yes. The stopwatch saves its start time and laps in this browser, so if you reload or close the tab by mistake, it carries on where it was, still running if it was running. Reset clears it.
How accurate is it?
It reads your device's clock on every frame instead of counting ticks, so it stays right in a background tab and over long runs. It shows hundredths of a second, but taps on a screen are only as exact as your finger.
How do I get my laps into a spreadsheet?
Press Copy laps, then paste into Excel, Google Sheets, or Numbers. Each row has the lap number, the lap time, and the total time.
What keyboard shortcuts are there?
Space starts and stops, L records a lap, R resets when stopped, and F goes full screen.
Is anything sent to a server?
No. The stopwatch runs in your browser and your laps are saved on this device only.
Related tools
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- Meeting costAttendees times an hourly rate, ticking up as the meeting runs.