Online Alarm

How It Works

1. Pick the alarm time. Enter the time you want the alarm to ring using the time picker.
2. Add a label (optional). Type a short label like "Stand-up meeting" so the alert reminds you what to do.
3. Allow notifications. Click Allow when the browser asks, so you get alerted even on other tabs.
4. Keep the tab open. Leave the tab open and your computer awake. At the set time, a sound plays and a notification appears.

Frequently Asked Questions

Does the online alarm work when my computer is asleep?

The alarm works as long as your browser tab is open and your computer is awake. For reliable alerts, keep the tab visible and adjust your power settings so the screen does not sleep before the alarm fires.

Will I get a browser notification when the alarm rings?

Yes. If you allow browser notifications, you will receive a notification when the alarm goes off, even if you are on another tab. The first time you set an alarm, the browser will ask for permission.

Can I set a custom label for my alarm?

Yes. Add a label like "Morning meeting", "Take medication", or "Pick up the kids" so the alert tells you exactly what to do when it rings.

Is the online alarm free to use?

Yes, completely free with no limits, ads, or sign-up. Everything runs locally in your browser, so your alarm settings never leave your device.

Can I set multiple alarms at the same time?

The page supports one active alarm at a time. To run several alarms, open the page in multiple tabs — each tab can hold its own alarm time and label.

What should I do if the alarm does not ring?

Check that the tab is still open, your device sound is on, and notifications are allowed for this site. Also make sure your computer has not gone to sleep, since sleeping devices suspend browser timers.