Online Stopwatch
Use an online stopwatch, also searched as an online stopper in some locales, with milliseconds, laps, repeat alerts, display settings, and CSV export.
Stopwatch
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Online Stopwatch FAQ
Use this online stopwatch, also searched as an online stopper or stopper online in some European locales, with lap timing, split times, milliseconds, repeat alerts, CSV export, and keyboard shortcuts for sports, speeches, tests, labs, classroom timing, and workflow measurements.
How to use
- Start the stopwatch with the button or space bar
- Record laps for split times or stage timings
- Set repeat alerts when a periodic prompt is needed
- Export CSV or clear the session history
Examples
Lap training
Record each lap to compare split and total time.
Process testing
Measure each step of a workflow before and after improvements.
Speech or classroom timing
Keep elapsed time visible while recording important moments as laps.
Does the online stopwatch support lap timing?
Yes. Record laps to compare split time and total elapsed time.
Is online stopper the same tool as an online stopwatch?
Yes. Some users and locales search for online stopper or stopper online when they need a browser stopwatch.
Can I use a millisecond stopwatch in the browser?
Yes. Milliseconds can be shown or hidden in the display settings.
Can I export stopwatch records?
Yes. CSV files are generated from local browser records.
What can I time with this browser stopwatch?
It works for workouts, running laps, experiments, presentations, classroom activities, process checks, and any task that needs elapsed time.
Use an online stopwatch, also searched as an online stopper in some locales, with milliseconds, laps, repeat alerts, display settings, and CSV export. Core controls stay above the fold for fast use on desktop and mobile browsers.
Privacy: Lap records and history stay in browser storage. CSV files are generated directly by the frontend.
Common searches
People also search for online stopwatch · stopwatch online · online stopper · stopper online · lap timer · millisecond stopwatch · browser stopwatch · sports stopwatch