Online Stopwatch
A free, accurate online stopwatch with lap times — start, stop and record laps right in your browser.
Completed focus sessions:
Laps
Runs entirely in your browser. Keep this tab open; a sound plays when the time is up.
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A simple, accurate online stopwatch that counts up in hours, minutes, seconds and hundredths. Record lap times as you go — great for workouts, cooking, studying, experiments and games. No install, no sign-up.
How to use it
Click Start to begin, Lap to record a split, and Reset to clear. Need to count down instead? Use the Countdown Timer or the Pomodoro Timer.
Frequently asked questions
Does it keep running if I switch tabs?
Yes — the time is calculated from real clock time, so it stays accurate even if the tab is in the background.
Can I record lap times?
Yes, press Lap while the stopwatch runs to capture a split; all laps are listed below.