About the Online Stopwatch
The Online Stopwatch is a simple, accurate stopwatch and timer that runs right in your browser. Start, stop and reset with one click — no download needed for workouts, study sessions or cooking.
How to use the Online Stopwatch
- Click Start to begin timing.
- Use Stop and Reset as needed.
- Read the elapsed time down to fractions of a second.
Frequently Asked Questions
Do I need to install an app?
No, the stopwatch works instantly in any modern browser on any device.
Will it keep running if I switch tabs?
Yes, the timer keeps counting accurately while it runs.
Can I use it as a timer too?
It works as a count-up stopwatch; a countdown timer mode may be added in future.
Is the Online Stopwatch free?
Yes, it is completely free with no sign-up.