Start counting up immediately, record a lap whenever you need a split, and reset when you're done — all in a browser tab, with no account and nothing to install.
Start it before a set or a lap, and tap Lap at each interval to keep every split without losing the running total.
No duration to set up front — just start it the moment you begin and check elapsed time whenever you need to.
Useful anywhere you want to know how long something actually took after the fact, not before it starts.
Big, readable digits and a lap list make it usable as a shared on-screen stopwatch, projected or on a shared screen.
Four steps, no setup required first.
The stopwatch counts up immediately — no duration or settings to configure first.
Each lap records its split (time since the last lap) and its total elapsed time, newest at the top.
Pause holds the current time in place; Reset clears both the clock and the lap list back to zero.
Fullscreen clears the browser chrome for a shared screen or projector; Keep Screen On stops it from dimming mid-session.
What you're actually getting, feature by feature.
No duration to enter — press start and it's already timing.
Record as many splits as you need; each shows both the split and the running total.
Clears the elapsed time and every recorded lap in one press.
Clear the browser chrome away for a clean, distraction-free display.
The Wake Lock API stops the screen from dimming or sleeping during a long timed session.
Pick from the same LED color set as the rest of the site's clocks, saved locally for next time.
The questions that come up most about this tool.
Yes — tap the flag icon while it's running to record a lap. Each entry shows the split (time since the previous lap) and the total elapsed time, with the most recent lap at the top.
Yes, it keeps counting in a background tab. Turn on Keep Screen On if you also need the display to stay lit and visible the whole time.
Yes — Reset clears the elapsed time and every recorded lap back to zero. If you just want to pause without losing laps, use the pause button instead.
This page is stopwatch-only, with lap times. The Timer page also has a stopwatch mode, but it's built around counting down to an alarm and doesn't track laps.
Need to count down to zero instead? See the Online Timer. Need multiple time zones at once? See the World Clock.