Free Online Stopwatch
A Simple Stopwatch with Lap Timing
Need to use Free Online Stopwatch right now?
No app install, no account — just start, stop, and lap directly in your browser tab.
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Features
- Runs entirely in your browser
- Privacy-first — your data is never uploaded
- Real-time, instant results
- 100% free, no sign-up required
- Works on desktop, tablet, and mobile
- No installation needed
Who uses this tool?
About Free Online Stopwatch
A stopwatch is one of those tools you need occasionally but rarely have handy — this one is always one tab away, with no app to install and no ads interrupting a timed activity. It counts up from zero with centisecond precision, and includes full lap timing so you can record split times without stopping the overall clock.
Timing is calculated from actual elapsed wall-clock time rather than counting timer ticks, which avoids the drift that simpler interval-based stopwatches can accumulate over long sessions. Each lap you record is added to a running list above the clock, most recent first, so you can review your splits at a glance.
Useful for workouts, cooking, timing presentations or speeches, or any activity where you need an accurate running clock with the ability to mark specific moments along the way without resetting to zero.
How it works
- Press Start. The stopwatch begins counting from zero.
- Press Lap to record splits. Mark a moment without stopping the clock.
- Pause or reset anytime. Full control over the running timer.
Examples
Timing interval workout splits
Input
Start, then Lap after each interval
Output
A list of split times, most recent first