Stopwatch

Our stopwatch uses the browser's high-resolution performance API for millisecond-level precision. It updates the display 60 times per second using requestAnimationFrame for smooth rendering. It's accurate enough for sports timing, cooking, and general use.

Laps allow you to record split times without stopping the stopwatch. Click the Lap button to record the current elapsed time. Each lap shows the lap number, lap time (time since the previous lap), and total elapsed time. Laps are displayed in a scrollable list.

Yes. The stopwatch uses timestamps rather than intervals, so it remains accurate even when the browser tab is in the background. The elapsed time is calculated based on the actual time difference, not frame counts.

Yes! Press Space to start/stop, L to record a lap, and R to reset. This makes it easy to use hands-free when timing activities.