Online Stopwatch
A precise stopwatch for timing activities. Whether you are tracking a workout, measuring a task, or just curious how long something takes, press start and go. No installs, no distractions.
Why time yourself
Measurement changes behavior. When you time an activity, you build an accurate sense of how long things actually take, not how long they feel. This is useful for improving estimates, identifying time sinks, and building awareness of where your time goes.
Athletes, students, and professionals all use stopwatches for different reasons, but the underlying principle is the same: what gets measured gets managed. Start timing the things that matter to you.
FAQ
How accurate is this stopwatch?
It reads your device's clock on every tick rather than counting intervals, so it does not drift even when the browser is busy. The display shows hundredths of a second.
Does it keep running if I switch tabs?
Yes. Elapsed time is measured from the moment you pressed start, so the reading stays correct when you come back, even if the browser slowed the page down while it was hidden.
What happens if I close the page?
The stopwatch resets. It lives only in this tab. For a stopwatch that survives reloads, use the main app, which keeps stopwatches running alongside your timers and alarms.
Can I record laps?
Not on this page, which is kept deliberately minimal. Press Stop to freeze the reading, note it, then Start again to continue from where you left off.