EVERYDAY CALCULATORS
Online Stopwatch — Free Timer with Lap Times
A free online stopwatch with start, stop, reset, and lap times. Runs in your browser with nothing to install and no signup.
Your files never leave your device.
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A straightforward stopwatch that runs in your browser — start, stop, reset, and record lap times as you go. The lap feature captures a split each time you tap it while the clock keeps running, so you can time intervals for workouts, track laps, cooking stages, or study sessions.
What this tool does
- Start, stop, and reset controls
- Lap times recorded without pausing the clock
- No install, no signup — runs in the browser and works offline once loaded
Frequently asked questions
- Does it keep running if I switch tabs?
- Yes. Elapsed time is calculated from real timestamps, so even if a browser slows background-tab updates to save power, the total stays correct when you return.
- How accurate is an online stopwatch?
- Accurate enough for everyday timing down to fractions of a second. Officially timed sporting events use dedicated hardware, but for personal use the browser clock is more than good enough.
- Will my laps survive a reload?
- No. Reloading or resetting clears the current run, so note down any laps you need before refreshing — this is a live-timing tool, not a record keeper.