Precise online stopwatch with lap recording. Start, stop, lap and reset — all in your browser. Fullscreen mode keeps it visible for sports, workouts and timed activities.
Timing displayed to the nearest hundredth of a second using the browser's high-resolution Performance API — far more precise than second-level timers.
Press Lap at any point to record a split without stopping the clock. Each lap shows both the individual interval time and the cumulative total.
Press F11 to expand the stopwatch to fill your entire screen — ideal for group sessions, sports coaching and classroom activities.
Clean, immediate controls. Pause mid-session without losing your time. Reset clears both the elapsed time and all recorded laps.
Works on any phone or tablet browser. Add GlowClock to your home screen for quick access during runs and workouts.
No subscription, no account, no installation. The stopwatch is one of five free tools on glow-clock.com — all accessible in the same tab.
The stopwatch and countdown timer serve different purposes. A stopwatch is the right tool when you need to measure how long something takes — not how long until something ends. Common uses include:
The difference between a stopwatch and a timer: a stopwatch asks "how long did that take?" — a timer asks "how long until I stop?" Both are available free on GlowClock.
Not simultaneously in the same tab, but you can open GlowClock in two browser tabs — one on Stopwatch and one on Timer — and run both simultaneously side by side.
Yes. GlowClock's stopwatch continues running in the background even when you switch to another tab. The displayed time updates when you return to the GlowClock tab.
There is no limit. Record as many laps as your session requires. All laps are listed chronologically with individual split times.
Free online stopwatch with laps. No sign-up needed.
⏱️ Open Stopwatch — Free