Stopwatch & Countdown

Stopwatch

Stopwatch with centisecond precision, lap times, countdown timer, Pomodoro mode, and multiple independent timers.

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Press Space to start/pause · L to lap · R to reset

Stopwatch

Stopwatch with centisecond precision, lap times, countdown timer, Pomodoro mode, and multiple independent timers.

Common uses

  • Run a 25-minute Pomodoro work session
  • Time multiple concurrent tasks with multi-timer
  • Run an 8-round HIIT workout timer

Frequently asked questions

Can I use Stopwatch to run a 25-minute Pomodoro work session?

Yes. Stopwatch can run a 25-minute Pomodoro work session, directly in your browser.

Can I use Stopwatch to time multiple concurrent tasks with multi-timer?

Yes. Stopwatch can time multiple concurrent tasks with multi-timer, directly in your browser.

Can I use Stopwatch to run an 8-round HIIT workout timer?

Yes. Stopwatch can run an 8-round HIIT workout timer, directly in your browser.

Is my data uploaded to a server?

No. This tool runs entirely in your browser — your input is processed locally on your device and is never uploaded or stored on a server.