Online Alarm Clock

Set online alarms with custom sounds and labels. Multiple alarms with snooze function—no app installation required.

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Set Alarm

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Active Alarms

No alarms set

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How to Use Online Alarm Clock

  1. View the current time display
  2. Set the alarm time (hour and minute)
  3. Add an optional label for your alarm
  4. Click Set Alarm to activate
  5. Dismiss alarms when they ring
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About Online Alarm Clock

Need a quick alarm without phone apps? Our browser-based alarm clock lets you set times, choose sounds, and receive notifications—all without installing anything. Perfect for reminders while working at your computer.

Alarm Features

Full alarm functionality:

  • Multiple alarms: Set several alarms for different times
  • Custom sounds: Choose from various alarm tones
  • Snooze: Delay alarm by configurable intervals
  • Labels: Name alarms for different purposes

Browser Requirements

Keep the browser tab open for alarms to work. Modern browsers may require permission for notification sounds. Test your first alarm to ensure your browser allows audio playback.

Use Cases

Work reminders: Meetings, breaks, end of day. Cooking: Multiple timers for different dishes. Medication: Regular interval reminders. Study: Pomodoro-style timed sessions.

Desktop vs Mobile

Works on both desktop and mobile browsers. For mobile, ensure your phone isn't in silent mode. Desktop browsers typically handle background alarms better than mobile browsers with aggressive tab management.

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Frequently Asked Questions

Will the alarm work if my browser is closed?
The alarm requires the browser tab to remain open (can be in background). For alarms while sleeping, enable "Keep screen awake" or use browser/OS settings to prevent sleep. Close the laptop lid will typically stop the alarm.
Can I set multiple alarms?
Yes! Create as many alarms as needed. Each can have its own time, label, sound, and repeat settings. Manage all alarms from one view. Toggle individual alarms on/off without deleting them.
What alarm sounds are available?
Choose from various tones: gentle chimes, energetic alerts, nature sounds, or classic alarm bells. Adjust volume independently from system volume. Test sounds before setting. You can also upload custom audio files.
Can I set repeating alarms for weekdays?
Yes! Set alarms to repeat: daily, weekdays only (Mon-Fri), weekends only, specific days, or custom patterns. Perfect for morning wake-ups that shouldn't trigger on weekends, or weekly reminders.
How do I snooze or dismiss alarms?
When an alarm triggers, click "Snooze" for additional time (default 9 minutes, customizable) or "Dismiss" to stop. Snooze can be limited to prevent endless delays. Use keyboard shortcuts for quick interaction.
Will alarms respect my device's Do Not Disturb?
Browser-based alarms are typically blocked by system Do Not Disturb modes. Add an exception for your browser if you need alarms to override DND. This varies by operating system - check your notification settings.