Online stopwatch
A free online stopwatch with laps, full screen and keyboard shortcuts. It keeps counting in a background tab and after a reload. No sign-up.
00:00.00
Space start/stop · L lap · R reset · F full screen
Press Lap while it runs to record a lap.
Does it keep time in a background tab?
Yes. It counts against your device's clock, so switching tabs, locking the screen or reloading the page loses nothing.
How many laps can I record?
Up to 99. The fastest and slowest laps are marked once there are three.
Can I use it in class or on stage?
Yes. Press full screen (or F) and the digits fill the screen; the screen stays on while it runs where the browser allows it.