Countdown Timer

Set a countdown timer with browser notification when complete.

Set Time

00:00:00

About the Countdown Timer

Set a countdown timer with browser notification alarm. Track time for cooking, studying, and workouts.

Why client-side?

Every byte you paste, type, or upload here is processed entirely inside your browser. Nothing is sent to a server, logged, or stored. That means it's safe to use this tool on production secrets, customer data, internal logs, and any input you would not paste into a hosted SaaS formatter.

Frequently Asked Questions

How do I set a countdown timer?
Enter the hours, minutes, and seconds, then click Start. The timer counts down and alerts you with a browser notification when it reaches zero.
Does the timer work in the background?
Yes. The timer continues running even if you switch browser tabs. You'll receive a notification when time is up.
Can I set multiple timers?
The tool runs one timer at a time. You can pause, reset, and start a new timer as needed.