Countdown Timer
Set a countdown timer for any duration, right in your browser, with a sound alert when it reaches zero. Includes quick presets and a progress bar. Nothing is sent to a server.
Any duration
Set hours, minutes, and seconds precisely, or use a quick preset for common durations.
Audible alert
A sound plays automatically when the countdown reaches zero, so you don't have to watch the screen.
Visual progress
A progress bar shows how much of the countdown has elapsed at a glance.
Common Mistakes to Avoid
Switching tabs and missing the alert
Solution:
Keep this tab in the foreground or check back near the expected end time, since some browsers throttle background tabs.
Expecting the timer to persist after closing the tab
Solution:
The countdown runs only while this tab is open — closing it stops the timer.
Frequently Asked Questions
If your browser tab or system volume is muted, the alert won't be audible even though the timer still finishes.
Yes — pause at any time and resume from where you left off.
Any duration
Set hours, minutes, and seconds precisely, or use a quick preset for common durations.
Audible alert
A sound plays automatically when the countdown reaches zero, so you don't have to watch the screen.
Visual progress
A progress bar shows how much of the countdown has elapsed at a glance.