Free Online Alarm Clock
Set a wake-up alarm right in your browser — no app to install and no signup. Choose a time, add an optional label, and the alarm will ring with a built-in sound when that minute arrives. You can set several alarms at once, and they are saved on your device so they survive a page reload.
How to set an alarm
- Pick the time you want the alarm to ring.
- Optionally type a label such as "Wake up" or "Meeting".
- Press Set alarm. It appears in the list below.
- Leave this tab open. When the time arrives the alarm rings — press Stop to silence it.
Common uses
- A morning wake-up alarm
- A reminder to leave for an appointment
- A nap or break alarm
- A cue to take medication or a call
FAQ
Does the alarm ring if I close the tab?
No. The alarm runs in your browser, so the tab must stay open. You can minimize the window, but don't close the tab.
Are my alarms saved?
Yes, they're stored locally in your browser (localStorage). They are not sent to any server.
Why is there no sound at first?
Browsers block audio until you interact with the page. Press a button once and the alarm sound will work.