Online alarm clock
Pick a time below — as long as this tab stays open, the alarm will ring.
⏰ Wake up!
The alarm can only ring while this tab is open — browsers don't let a web page wake a closed tab. Keep the tab open and the device awake.
A dependable alarm clock in your browser
Set the time, leave the tab open, and a loud, repeating alarm tone plays at the chosen moment — with the current time always visible in large digits. The alarm re-arms daily as long as the page stays open, and your alarm time is remembered for your next visit.
It runs on phones, tablets and desktops without an app or account. For counting down a fixed duration instead of waking at a set time, use the online timer.
Frequently asked questions
Does the alarm ring if the tab is closed?
No — browsers don't allow a closed tab to play sound. Keep this tab open (in the background is fine) and the device awake, and the alarm will ring reliably.
Is my alarm time saved?
Yes. The alarm time is stored in your browser: it survives a reload and is restored on your next visit. While the page stays open, the alarm re-arms itself every day.
Will it ring while I work in another tab?
Yes. As long as this tab stays open, the alarm sounds at the set time and the tab title flashes so you spot it immediately.