Online Countdown Timer
Set a countdown in seconds, minutes or hours with an alarm at zero. Presets for common intervals and a fullscreen display.
How to use it
- Use a preset or type your own hours, minutes and seconds.
- The tab title counts down too, so you can watch it from another tab.
- An alarm sounds at zero — click anywhere first so the browser allows audio.
Set a duration in hours, minutes and seconds and this counts down to zero with an audible alarm, presets for common intervals, and a browser tab title that updates so the countdown is visible even from another tab.
Common uses and typical durations
| Use | Typical duration |
|---|---|
| Pomodoro focus session | 25 minutes |
| Short break | 5 minutes |
| Egg timer (soft-boiled) | 6 minutes |
| Egg timer (hard-boiled) | 10–12 minutes |
| Presentation time limit | 5–20 minutes |
| Workout interval / rest | 30 seconds – 2 minutes |
Why audio needs a click first
Browsers block auto-playing audio from a page you haven't interacted with yet, as a spam-prevention measure — this is a browser-wide rule, not something specific to this tool. Clicking anywhere on the page once (starting the timer counts) unlocks audio for the rest of the session, so the alarm plays reliably when the countdown reaches zero.
Runs entirely in your browser. Nothing you type is uploaded, logged or shared.
Last updated 17 August 2026