Free Online Alarm

Online Alarm

Set an alarm for any time

Current time

20:18:17

Set alarm for:

Hour

Minute

The online alarm lets you set a specific time to receive an audible alert directly in your browser. It is the perfect solution when you need to be reminded of something at a specific time, without installing any app.

To use, simply set the desired hour and minute and click "Set Alarm". The clock will show the configured time and how long until the alarm goes off. When the time arrives, a sound alarm will be triggered automatically.

Snooze Function

Just like a traditional alarm clock, our online alarm offers the snooze function. When you click "Snooze", the alarm will be rescheduled for 5 minutes later, giving you extra time before the next alert. You can also use the quick shortcuts to set alarms relative to the current time (in 15 minutes, in 30 minutes, etc.).

Important: keep the browser tab open for the alarm to work properly. The sound is generated by the Web Audio API, which works in all modern browsers.

Frequently Asked Questions

No, the alarm requires the browser tab to be open to work. You can navigate to other tabs, but do not close the alarm tab.

When you click "Snooze", the alarm is rescheduled for 5 minutes later. You can use snooze as many times as you want.

Yes! If the set time has already passed today, the alarm will automatically be configured for the same time the next day.

Yes, as long as the browser is open and the device volume is on. On some devices, battery saver mode may affect functionality.