Online Countdown Timer

Count down from any duration with an end alert.

Processed locally — nothing is uploaded

About Stopwatch & Timer

Each lap shows its own time next to the running total, with the fastest and slowest marked, because comparing one interval against another is the entire point of recording them. The clock is high-resolution rather than a once-a-second tick, so a long session does not drift.

Set a countdown for any duration and get a clear time's-up alert when it hits zero — handy for cooking, workouts, presentations and breaks. It runs in your browser with no sign-in.

Time anything with a lap-recording stopwatch, or count down from any duration with a clear time's-up alert — both in one tool. Use the stopwatch for workouts, cooking and speed tests, and the countdown for breaks, presentations and kitchen timers.

Record laps to compare one interval against another, or switch to the countdown for a fixed duration with an alert at the end. Both share a tab, so timing a workout and its rest period does not mean swapping tools.

Learn how this works

Frequently asked questions

Will the timer keep running if I switch tabs?

Yes. Elapsed time is calculated from timestamps rather than counted tick by tick, so it stays accurate even when a browser throttles background tabs — which is exactly where naive timers drift.

Does it alert me when time is up?

The page shows the finished state clearly. Because browsers block sound and notifications without explicit permission, keep the tab visible if you need to catch the exact moment.

What happens if I refresh the page?

The timer resets — nothing is stored on a server, which is what keeps the tool private and instant. For a long countdown, leave the tab open rather than reloading.

Common Use Cases

  • Timing a presentation slot or interview round
  • Running a focused work interval away from your phone
  • Timing cooking or workout intervals on a laptop

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