Online Timer & Stopwatch

Countdown timer with a sound alarm, plus a lap-capable stopwatch — including a one-click 25-minute Pomodoro preset. Works offline.

05:00

Accurate Even in Background Tabs

Both the timer and the stopwatch are based on real timestamps, not tick counting — so if your browser throttles the tab while you work elsewhere, the time stays exactly right when you return. The alarm is generated with the Web Audio API in your browser, so the tool works fully offline.

Pomodoro focus method

Work 25 minutes (the 🍅 preset), break 5 minutes, repeat ×4, then take a longer break. It's one of the simplest proven ways to keep deep focus through the day.

Popular Uses

  • Study & work: Pomodoro sessions, exam practice pacing, meeting timeboxes.
  • Kitchen: boiling, baking, steeping tea — the alarm cuts through.
  • Fitness: interval training and rest periods with the stopwatch's lap button.
  • Counting days instead of minutes? Use our Date Difference Calculator.

Frequently Asked Questions

Does the timer play a sound when it finishes?
Yes — a clear beep alarm plays at zero and the display flashes. The sound is generated in your browser, so it works offline.
Will the timer keep running if I switch tabs?
Yes. It's based on real timestamps, not tick counting, so it stays accurate in background tabs.
What is the Pomodoro technique?
Work 25 minutes, break 5, repeat. Use the 25 min preset for work sessions and 5 min for breaks.
How accurate is the stopwatch?
It uses performance-grade timestamps and shows hundredths of a second; laps record the exact click moment.