Online-Wecker

Stellen Sie kostenlose Online-Alarme in Ihrem Browser ein. Mehrere Alarme, benutzerdefinierte Beschriftungen, Countdown-Anzeige und Browser-Benachrichtigungen. Kein Download nötig.

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About Free Online Alarm Clock

Our free online alarm clock is a fully browser-based tool that lets you set multiple alarms without installing any apps. Whether you need a wake-up alarm, meeting reminder, cooking timer, or medication alert, this tool handles it all. Set unlimited alarms with custom labels, get countdown displays showing exactly when each alarm will ring, and receive browser notifications when it is time. All alarms are stored locally in your browser, so your privacy is fully protected. No account required, no ads, and completely free.

Features

  • Set unlimited multiple alarms — create as many alarms as you need for different times and purposes throughout your day
  • Custom labels for each alarm — name your alarms for easy identification (e.g., "Morning Workout", "Team Meeting")
  • Live countdown display — see exactly how much time remains until each alarm rings in days, hours, minutes, and seconds
  • Browser notifications — receive desktop alerts even when the tab is in the background
  • Sound alerts with test option — preview the alarm sound before setting to ensure your volume is right
  • Snooze functionality — delay any ringing alarm by 5 minutes with a single click when you need extra time
  • Quick preset buttons — instantly set alarms for common intervals: 5 min, 15 min, 30 min, 1 hour, or tomorrow morning
  • Toggle individual alarms on/off — enable or disable alarms without deleting them, perfect for recurring schedules
  • Works on all devices — desktop, tablet, and mobile phones with any modern browser
  • 100% private and free — no data sent to servers, no registration, no ads, no usage limits

How to Use

  1. Select your desired alarm time using the datetime picker — choose any date and time in the future
  2. Add an optional label to identify your alarm (e.g., "Wake Up", "Project Deadline")
  3. Click "Add Alarm" to save it — your alarm will appear in the active alarms list with a live countdown
  4. Use quick presets for instant setup — click "In 5 minutes", "In 15 minutes", or "Tomorrow 8:00 AM" for one-click alarms
  5. Enable sound and notifications — click the speaker icon to toggle sound, and allow browser notifications when prompted
  6. When an alarm rings, choose to snooze for 5 minutes or dismiss it. Toggle alarms off to pause them without deleting.

Common Use Cases

  • Wake up on time — set a reliable morning alarm without installing any sleep apps on your phone or computer
  • Meeting and appointment reminders — create labeled alarms for each meeting so you are never late for calls or appointments
  • Medication and hydration reminders — schedule recurring alarms to take pills at the right times or remind yourself to drink water
  • Study session breaks — use the Pomodoro technique with alarms for 25-minute focus sessions and 5-minute breaks
  • Cooking and baking timers — set multiple alarms for different stages of a recipe (e.g., prep, simmer, cool)
  • Power nap and quick rest — set a 15 or 30-minute alarm for a rejuvenating nap with snooze as backup

Frequently Asked Questions

Does the alarm work if I close the browser tab?

No, the alarm requires the browser tab to remain open. However, it will work if the tab is in the background or minimized. For best reliability, keep the tab open. For critical alarms, consider using your device's native alarm app alongside this tool.

Can I set multiple alarms at once?

Yes! You can set as many alarms as you need. Each alarm can have its own time, custom label, and on/off toggle. All alarms are displayed in a sorted list with live countdown timers showing exactly when each will ring.

Is there a snooze option?

Yes, when an alarm rings, you can click "Snooze 5 min" to delay it for 5 minutes, or "Dismiss" to cancel it. The snooze function is perfect for morning alarms or when you need a few more minutes to finish a task.

Why is there no sound when the alarm rings?

Make sure your device volume is up and that the sound is enabled by clicking the speaker icon (it should show 🔊). Some browsers require user interaction before playing audio — try clicking the "Test Sound" button to unlock audio. Also check that your browser is not muted in your system settings.

Does this alarm clock work on mobile phones?

Yes, this alarm clock works on all devices with a modern browser — desktop computers, tablets, and mobile phones. On mobile, we recommend keeping the browser tab open for the most reliable experience. Enable browser notifications for alerts even when the screen is off.

Can I use this alarm clock offline?

Once the page is loaded, the alarm clock will continue to work even if you lose your internet connection, since all processing happens client-side. However, you need an internet connection to initially load the page. Your alarms are stored in your browser's local storage.

Are my alarms saved between sessions?

Yes, all your alarms are saved in your browser's local storage. They will persist even if you close the browser, restart your computer, or return to the page days later. However, clearing your browser data will remove saved alarms.

How do I enable browser notifications?

Click the notification note at the top of the page or interact with the alarm settings. Your browser will ask for permission — click "Allow" to enable notifications. This ensures you receive alerts even if the tab is in the background or minimized.

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