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Alarm Clock

Set an online alarm that rings in your browser.

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Set an alarm

    Alarms ring only while this page stays open and your device is awake, with the volume up. Phones may pause pages in the background, so for important wake-ups use your phone's built-in clock app as well.

    Your alarms are saved only in this browser on this device. Nothing is uploaded. Clearing your browser data deletes it.

    When to use it

    Use this online alarm clock as a quick reminder while you work, study or cook at your computer: a meeting in 20 minutes, a break every hour, or the end of a study session. It is simple to set, plays a choice of sounds, and needs no app.

    How to use it

    1. Tap the page once to allow sound. The message Tap here once to turn on alarm sound disappears.
    2. Under Set an alarm, choose the Time.
    3. Add a Label, such as “Take a break”, if you like.
    4. Choose a Sound: Classic beep, Chime, Digital or Gentle rise. Press Test sound to hear it.
    5. Click Set alarm. It appears in your list with the time left until it rings.
    6. Tick Keep the screen on while this page is open on laptops and tablets.
    7. When it rings, choose Stop or Snooze 5 min.

    Worked example

    You are writing a report and want to stop for lunch at 12:30. Set the time to 12:30, label it “Lunch”, choose Chime and click Set alarm. The list shows “rings in 1 h 15 min”. Keep the tab open in the background while you work. At 12:30 the chime plays and the label appears on screen.

    If you need ten more minutes, press Snooze 5 min twice, once each time it rings.

    Important limits

    Phones and tablets often pause web pages when the screen locks or you switch apps, so an alarm in a browser is not reliable for waking up in the morning. Use this tool for alarms while you are at your device, and your phone’s built-in clock for anything you cannot miss.

    Tips

    • Test the sound first. Make sure the volume is loud enough and the device is not muted.
    • Plug in a laptop. Keeping the screen on uses more power.
    • Use labels. “Call Sam” is clearer than a time alone when the alarm goes off.
    • Switch alarms off instead of deleting them. Each alarm has a toggle, so a daily reminder can be turned on again tomorrow.
    • Use the countdown timer for short spans. For “in 15 minutes”, a timer is quicker to set.

    Common mistakes

    • Closing the tab. The alarm will not ring.
    • Muting the computer. Check the volume and any “do not disturb” settings.
    • Mixing up AM and PM. Check the time in the list after setting it.

    Frequently asked questions

    Will the alarm ring if I close the tab?

    No. The alarm only rings while this page stays open, your device is awake and the volume is up. For important wake-ups, use your phone's built-in clock app as well.

    Why do I need to tap the page first?

    Browsers block sound until you have tapped or clicked a page, to stop websites playing noise unexpectedly. Tap the page once, or press Test sound, and the alarm will be able to ring.

    What does Keep the screen on do?

    It asks your device not to dim or lock the screen while the page is open, so the alarm can ring on time. It is not available in every browser, and it uses more battery.

    Can I set more than one alarm?

    Yes. Each alarm appears in the list with its time and label, and you can remove any of them. They are saved in this browser on this device.

    How does snooze work?

    When an alarm rings, Snooze 5 min stops the sound and sets the same alarm again for five minutes later. Stop ends it.

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