Online timer
Set a time and press start — an alarm sounds at zero. The countdown stays visible in the tab title, even while you work in another tab.
⏰ Time's up — the alarm stops by itself.
Popular timers
A free countdown timer that just works
This timer runs entirely in your browser — nothing to install, no account, no ads blocking the screen. Start it, switch tabs, and the remaining time keeps counting in the tab title; when it reaches zero you hear a clear alarm tone. A running timer even survives an accidental reload.
Use the quick presets below for common durations, or type any combination of hours, minutes and seconds. On a phone, add this page to your home screen to keep a full-screen timer one tap away.
Frequently asked questions
Does the timer keep running in a background tab?
Yes. The remaining time keeps counting in the tab title, and the alarm sounds at zero even while you work in another tab — the countdown is based on a target timestamp, so browser throttling doesn't make it drift.
What happens if I accidentally reload the page?
A running timer survives a reload: the target time is stored in your browser, and the countdown simply continues where it was.
Do I need to install anything or create an account?
No. The timer runs entirely in your browser — free, no signup, no app. It works on phones, tablets and desktops alike.