A free online countdown timer that never misses

Set a time, press start, and our online countdown timer counts down to zero and alerts you with a clear chime. No download, no sign-up — just pick a preset or dial in your own minutes and seconds. It is the simplest way to time anything in your browser.

Use it for cooking and baking, exams and study blocks, workouts, presentations, parking meters, tea, or any moment you need a reliable reminder. The timer keeps perfect time even if you switch tabs, and sounds the alarm the instant it reaches zero.

How to set the countdown timer

1. Tap a preset (1, 3, 5 or 10 minutes) or use the + / − steppers to set your own minutes and seconds.
2. Press Start or hit the spacebar to begin the countdown.
3. Press Pause to hold, and Reset (R) to return to your set time.
4. When the timer hits zero you'll hear an alarm — press fullscreen (F) to make it visible across the room.

More than a timer

Need to measure elapsed time instead? Switch to the online stopwatch with lap splits. Studying or working in focused blocks? The Pomodoro timer alternates work and breaks automatically. Training? The interval timer runs work-and-rest rounds for HIIT and circuits.