How accurate is the stopwatch?

It uses the browser clock and displays time to a hundredth of a second. Because timing is based on real elapsed time, it stays accurate even if the tab is in the background.

Does it keep counting if I switch tabs?

Yes. The stopwatch measures real elapsed time between start and stop, so leaving the tab open in the background does not lose time.

Are my lap times saved anywhere online?

No. The stopwatch runs entirely in your browser and laps live only in the current page. Nothing is uploaded or stored on a server.

Online Stopwatch

Start, stop and lap an accurate stopwatch with hundredths of a second.

A precise online stopwatch with lap times

Time anything from a workout interval to a cooking step with this online stopwatch. It counts up to a hundredth of a second and lets you record lap and split times while it keeps running.

Start, stop and resume as often as you like, or reset to begin fresh. Because it measures real elapsed time, the count stays accurate even when the tab is in the background — and it all runs locally in your browser, with nothing uploaded.