Stopwatch
Start, lap, and stop timing — accurate to the hundredth of a second.
00:00.00
A simple stopwatch with start, pause, resume, lap, and reset — runs in the tab, accurate to hundredths of a second.
Frequently asked questions
How accurate is it?
It updates continuously and displays to the hundredth of a second, using your browser's high-resolution timer rather than counting in fixed steps, so it doesn't drift during longer runs.
Will it keep running if I switch to another tab?
Yes — timing is based on elapsed real time, not how often the tab redraws, so pausing and resuming (or switching tabs and coming back) still gives an accurate total.