Stopwatch

A free online stopwatch with lap times, running entirely in your browser.

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How to use

  1. 1Click Start to begin timing.
  2. 2Click Lap to record a split time.
  3. 3Click Stop to pause, or Reset to clear everything.

Features

  • Millisecond precision
  • Lap time recording
  • Accurate even when the tab is in the background

Supported formats

Output: elapsed time

Privacy

The stopwatch runs entirely in your browser; nothing is sent to our server.

About this tool

A simple, accurate stopwatch with lap timing, useful for workouts, timing tasks, or any activity you want to measure.

Frequently asked questions

Does the stopwatch keep running if I switch tabs?

Yes, timing is based on your device's clock, so the elapsed time stays accurate even if the tab is in the background.

Can I record lap times?

Yes, click Lap while the stopwatch is running to record the current elapsed time.