Chronometer
A browser stopwatch with start, pause, reset, and centisecond precision. Keeps running while you work and needs no installation.
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// About this tool
Time tasks, experiments, or intervals directly in the browser. Start, pause, and reset with hundredth-of-a-second precision. The display updates several times per second.
// How to use it
- Press start to begin timing.
- Pause or resume as needed.
- Reset to zero for the next run.
// Frequently asked questions
Does the timer keep running in the background?
It continues while the tab stays open, but browsers may throttle background timers.
Is the timing accurate?
It uses elapsed wall-clock time rather than counting ticks, which reduces drift.