Countdown Timer
Set any duration and count down to zero. Perfect for cooking, exercise intervals, meetings, exams, or any timed activity. An audio alarm plays when the countdown reaches zero.
00:05:00
Ready
How to use
- Enter the desired duration using the hours, minutes, and seconds inputs.
- Click Start to begin the countdown. The display updates every second.
- An audio alarm plays when the timer reaches zero. Click Reset to start over.
Frequently asked questions
- Is this countdown timer free?
- Yes, completely free with no signup and no usage limits.
- Does it send any data to a server?
- No. Everything runs in your browser using JavaScript — no data is uploaded anywhere.
- Does it work on mobile?
- Yes. Works in Safari, Chrome, and Firefox on iOS and Android. Keep the screen on to hear the alarm.