Alarm Clock

Set browser alarms with sound & notifications. Keep this tab open.

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Set browser alarms that ring at a specific wall-clock time. Great as a backup when you don't have your phone or want a laptop-based alarm.

How it works

Every 500 milliseconds we check whether the current wall-clock time matches any active alarm. When it does, we play a repeating tone and (if permission is granted) show a browser notification.

Key features

Multiple alarms
Custom labels
Toggle on/off individually
Sound + notification alert
Live clock display

Common use cases

Meeting reminders

Set an alarm 5 minutes before your next call.

Medication

Recurring timings for pill schedules.

Power naps

Wake up on the dot from that lunch snooze.

Pro tips

◆Keep the tab open — the alarm can't ring if the browser is fully closed.
◆Test the sound at least once before relying on it.

Common mistakes to avoid

✕Closing the browser and expecting the alarm to still ring. It won't.

Frequently asked questions

Does the alarm work when my laptop is asleep?▼

No — the browser suspends when the system sleeps. Use a phone alarm for that.

Can I set recurring alarms?▼

Recurring/daily alarms are on the roadmap.