Countdown Timer
A full-screen countdown timer with an alarm when it finishes.
Frequently asked questions
How does the countdown timer work?
You set a duration in hours, minutes and seconds, start it, and the timer counts down to zero and sounds an alarm.
Does it make a sound when it finishes?
Yes. When the countdown reaches zero it plays an alarm sound to alert you that the time is up.
Can I pause and resume the timer?
Yes. You can start and stop the countdown, and the remaining time is kept so you can resume where you left off.
What can I use a countdown timer for?
It is handy for cooking, workouts, study sessions, presentations, games and any task where you want an alert after a set amount of time.
Will the timer keep running if I switch tabs?
The timer continues based on real elapsed time, so it stays accurate even if the tab is in the background, though the alarm plays when you return if the tab was suspended.
Do I need to install anything?
No. It runs directly in your browser with nothing to download or set up.
Is my timer data uploaded?
No. The countdown runs entirely on your device and nothing is sent to a server.