Countdown Timer
Set your time, hit start, and count down to zero with a visual progress ring and audio alarm.
Hours
Minutes
Seconds
05:00
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Frequently Asked Questions
How do I set a countdown timer?
Enter hours, minutes, and/or seconds using the input fields, then click Start. The timer counts down to zero with a visual progress ring. When it reaches zero, an audio alarm plays to alert you.
Can I use preset times?
Yes! Quick-set buttons let you start common timers instantly: 1 min, 5 min, 10 min, 15 min, 30 min, and 1 hour. You can also enter any custom time.
Does the timer work in the background?
Yes. The countdown continues even when you switch to another browser tab. The page title updates to show remaining time, so you can see it in your tab bar. An alarm sounds when the timer finishes.
Is there an alarm when the countdown ends?
Yes, an audio alarm plays automatically when the timer reaches zero. The alarm uses the Web Audio API, so no external files are needed. Make sure your device volume is turned up.