Free · No sign-up · Works in your browser
00:00
Online Stopwatch
Free · No sign-up · Works in your browser
Online Stopwatch
A clean count-up stopwatch: press start and let it run. It measures against the real clock, so the elapsed time stays exact through background tabs and even page reloads.
Counting up
What people measure with it
🏋️
Workouts and rests
Time a plank, a run, or how long you actually rested between sets — big digits you can read mid-exercise.
📖
Honest study hours
Start it when you open the books and pause it when you drift — the total is how long you truly studied.
⏲️
Everyday timing
Calls, commutes, chores, brewing — whenever the question is «how long did that take?», count up.
How it works
Start, pause, reset
No account, nothing to install — and because the elapsed time is derived from the wall clock rather than counted tick by tick, it cannot drift.
1
Press start
The stopwatch begins at 00:00 and counts up — past the hour if you need it.
2
Pause any time
Pause freezes the total; start again to keep accumulating on top of it.
3
Reset to zero
One tap on reset returns to 00:00, ready for the next measurement.
FAQ
Online stopwatch questions
Yes to both. The stopwatch stores when you pressed start and measures against the real clock, so a throttled background tab shows the exact total the moment you return — and if you close and reopen the page while it runs, the elapsed time is still right.
A stopwatch counts up from zero to measure how long something takes; a timer counts down to an end and rings. If you want the ring, use the online timer or a preset length below.
Completely. No sign-up, no ads, no cookies — everything runs and stays in your browser, and it even works offline once the page has loaded.
Need a countdown instead?