date time

Stopwatch

Precise millisecond stopwatch in your browser. Start, stop, lap, and reset with keyboard shortcuts and lap history.

How to use Stopwatch

  1. 1Paste your input in the panel above or use the example data if available.
  2. 2Choose an action — format, generate, convert, encode, or analyze.
  3. 3Your result appears instantly. Use Copy to grab it, or Download if a file option is shown.

Runs entirely in your browser

Nothing you type, paste, generate, or upload leaves your device.

Related tools

date time

Countdown Timer

Live countdown to any date.

countdowntimer