Countdown Timer
Set a countdown with an audible alert when time is up.
05:00
Quick presets
Continue your work
- Stopwatch — Measure elapsed time when you do not have a fixed duration.
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Clear instructions
Find steps, examples and limitations below.
Use online
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Free to use
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How to use the Countdown Timer
Count down from a selected duration with an optional finish sound.
- 1 Set Hours, Minutes and Seconds or choose a quick preset.
- 2 Enable Play a sound when finished if needed and click Start.
- 3 Use the timer control to pause as available, or Reset to restart the selected duration.
Example and practical tips
Choose the 25-minute preset for a focused work session.
Frequently asked questions
Can the sound be blocked?
Yes. Browser audio rules, mute settings and device sleep can prevent an audible alert. Test it before relying on it.
Will it wake my device or notify me after closing the page?
Do not rely on it to do so. Keep the page available; this is not an operating-system alarm service.