Stopwatch
Precision stopwatch with lap splits.
This stopwatch online counts up from zero so you can time anything with a few clicks. Start it, stop it, record a lap and reset it. It is useful as a stopwatch timer for study sessions, workouts, presentations, cooking, speed practice and quick experiments. Many students use a stopwatch for study to measure how long a problem set or a reading block really takes, then compare it across days to plan their time better. A browser stopwatch is handy when you do not have a physical one nearby and do not want to install a stopwatch app or pay for a download. Keep the tab open while it runs, because browsers may slow background tabs and affect accuracy on some devices. It runs entirely in your browser with no upload and no account, and it keeps working offline once the page has loaded. It is free to use, with no ads asking for sign-up and no usage limits.
Frequently asked
Can I use this stopwatch for study?
Yes. Start it when you begin a study block and stop it when you finish, then note the time. Tracking sessions over several days shows how you spend your time.
Do I need to download a stopwatch app?
No. It runs in your browser, so there is nothing to install.
How accurate is an online stopwatch?
It is accurate for everyday timing. For best results keep the tab visible, since some browsers throttle background tabs.
Is the stopwatch free and does it work offline?
Yes to both. It is free with no account, and it works offline after the page loads.
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