Stopwatch
To use the online stopwatch, press Start (or the space bar), Lap to record split and lap times, and Stop to pause. Timing uses the browser's high-resolution monotonic clock to the hundredth of a second, and laps can be copied or downloaded.
- Free
- No signup
- Runs in your browser
How to use Stopwatch
- 1Type or paste your input into the Stopwatch.
- 2Choose any options you need.
- 3See the result update instantly.
- 4Copy the result or download it.
Stopwatch: questions people ask
How accurate is it?
It reads performance.now(), accurate to well under a millisecond; display is to 0.01 s.
What is the difference between lap and split time?
Lap time is the time since the previous lap; split time is the total time since start.
Is my data uploaded when I use the Stopwatch?
No. The Stopwatch runs entirely in your web browser, so your text and numbers stay on your device and work even on a slow connection.
Does the Stopwatch work on iPhone, Android and Mac?
Yes. The Stopwatch runs in any modern browser (Safari, Chrome, Edge or Firefox) on iPhone, iPad, Android phones, Mac, Windows and Chromebook. There is no app to install.
Is the Stopwatch free?
Yes. The Stopwatch is free with no signup, no watermark and no daily limit.