The best free online stopwatch runs entirely in your browser with a clear start, stop and reset, and often lap times. It is free with no account, needs no install, and works on both desktop and mobile.
You reach for a stopwatch to time a workout, a task, a study block or a cooking step, so it needs to open fast and just work. A browser-based stopwatch loads immediately with no download, no sign-up and no ads getting in the way of the start button.
The best online stopwatches add lap timing so you can record splits without stopping the clock, and they keep counting accurately in the background. Because it runs in the browser you can pin the tab and glance at it while you work, and there is no cost, no account and no app to keep updated. That makes a browser stopwatch a dependable default whenever you just need to measure elapsed time.
No. It runs in any modern browser with nothing to download.
Yes. You can record laps to capture splits without stopping the clock.
Yes. It works on both desktop and mobile browsers.