Online Alarm Clock

Set alarms in seconds from your browser with repeat schedules, snooze, sound, and notifications.

Keep current time and your next alarm in one view.

Other languages 日本語 | English | 简体中文 | 繁體中文 | 繁體中文(香港) | Español | Español (México) | Português (Brasil) | Português (Portugal) | Bahasa Indonesia | Tiếng Việt | 한국어 | Français | Deutsch | Svenska | Suomi | Dansk | Norsk bokmål | Italiano | Русский | हिन्दी | العربية | বাংলা | اردو | Türkçe | ไทย | Polski | Filipino | Bahasa Melayu | فارسی | Nederlands | Українська | עברית | Čeština

Highlights

How to use

  1. Enter a time and optional label, then add the alarm.
  2. Select weekdays to repeat the alarm.
  3. Check the remaining time on the next alarm card.
  4. Enable sound or notifications with the action buttons.

Online Alarm Clock

Set browser alarms with snooze, sound, and notifications

--:--
Next alarm
--
--
Note
  • If your device sleeps, the alarm may not ring.
  • For critical use, please use your OS alarm app.
  • Sound and notifications depend on browser permissions.
Settings
Add alarm
Repeat
Alarms

Alarm setup for repeat schedules and real-world wake-up use

This page runs browser alarms with labels, repeat days, snooze, notifications, sound, and fullscreen support. It works well for desks, study sessions, and backup reminders, but device sleep, mute, or aggressive background throttling can delay alerts. For critical wake-up or medication use, keep your OS alarm enabled too. Pair it with Timer for countdown work, Fullscreen Clock for always-on display, and Sleep Cycle Calculator when you are planning bedtime rather than a browser reminder.

Best-fit uses

Limits to remember

FAQ

Do I need to install an app?

No. This alarm runs directly in your browser with no extra installation.

Can I create multiple alarms?

Yes. You can add multiple alarms and set repeat weekdays for each one.

Will it ring if my device sleeps?

Sleep mode or aggressive background throttling can delay alarms. For critical timing, also use your OS alarm.

Does the share URL save everything?

It saves key display and alarm settings, but not the live running state.

Can I enable notifications?

Yes. Grant browser notification permission and test sound before relying on it.

Related tools

Related calculators