Online Alarm Clock

Online Alarm Clock

Set a free alarm online in your browser: choose a time, pick a sound, and keep this tab open until it rings.

Stored in this browserNo download or account
Your local time
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Set an alarm

:

Choose hours from 0–23 and minutes from 0–59.

Keep this tab open and keep your device awake. Closing the tab or putting the device to sleep stops a browser alarm.

Your alarms

Your alarms 0 enabled

The countdown compares the target with your device clock, so it stays accurate when the tab is in the background.

No alarm set yet

Set a time above and the next alarm will appear here with a live countdown.

Stored in this browser · One-time alarms turn off after ringing

Start with a familiar time

Choose a time, then confirm to enable the alarm.

A small record of what rang.

Recent alerts stay on this device, which helps when you are using the page for medication, study breaks, or a daily routine.

Your completed alarms will appear here.

Delete this alarm?

Alarm is ringing

Your online alarm

Take a moment for what matters.

Snooze does not change the original repeat schedule.

How to set an alarm online

The quickest path is designed for the moments when you need a reminder now, not another app to configure.

  1. 01

    Check local time

    Confirm the live clock and time zone at the top of the page.

  2. 02

    Choose a time

    Use 06:30 or 07:00 as a starting point, or enter any date and time.

  3. 03

    Name and test

    Add a label such as “meeting” or “medicine”, then test the selected sound.

  4. 04

    Leave the tab open

    You can switch tabs, but your device must stay awake for the browser alert.

Keep this tab open and your device awake. A browser alarm cannot ring after you close the tab or shut down your device.

A Free Online Alarm Clock, No Account Needed

Set an alarm without downloading an app, creating an account, or sending your schedule to a server. Your alarm settings stay in this browser so you can use the page for a morning routine, a meeting, or a reminder.

A Loud Alarm Sound You Won't Sleep Through

Pick a classic tone, weather sound, or local audio file, then adjust the volume and press Test alarm once. The first click unlocks browser audio and helps you confirm the sound before you step away.

What people use an online alarm clock for

  • Waking up

    Set a time for tomorrow morning and keep the page open while you sleep. Test the volume before you put your device down.

  • Power naps

    Choose a short alarm for a 20-minute rest or an afternoon break without installing another app.

  • Cooking

    Use a browser alarm for bread, pasta, laundry, or anything that needs a reminder while you work nearby.

  • Meetings and study

    Set a clear start or break time for a meeting, study session, medication reminder, or focused work block.

How this online alarm clock stays accurate

The countdown compares your target with your device clock instead of adding one second at a time. When the page becomes visible again, it recalculates the remaining time. It does not need a network connection after the page loads, but the browser tab must remain open and your device must stay awake.

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Online Alarm Clock FAQ

How do I set an online alarm clock?

Set your online alarm clock in three steps:

  1. Check the displayed local time, then set the hour and minute or select a suggested time.
  2. Open the sound preview and use the shared settings to choose a built-in sound, adjust volume, or mute. Choose repeat days, a snooze interval, and a label.
  3. Set the alarm and check its next scheduled time in the list. Keep this page open and your device awake.

Does an online alarm clock work if I close the browser?

Alarms cannot sound while the page is closed. Settings are saved in this browser and restored when you reopen it. Reminders missed by more than five minutes do not play; one-time alarms are disabled and repeating alarms schedule their next occurrence. Keep the page open and your device awake. Private browsing or clearing browser data may prevent settings from being retained.

Is it free? Do I need an account?

Free to use, with no account or download required. Alarm plans are saved in your current browser, rather than as server-side records.

Can I set it on my phone?

Yes. Choose a time, repeat days, and a sound in your mobile browser. Keep the page open and your device awake. Locking the screen or battery-saving mode may suspend the browser; test the reminder on your device first.

Will the alarm sound play if my volume is muted?

Open Sound settings in the header to choose a built-in ringtone, adjust volume, and test playback. Choose Silent for a visual reminder. Check that the device and browser tab are not muted before relying on an audible alarm.

Is this alarm sound loud enough to wake me up?

The volume depends on your speakers, system volume, and shared sound settings. Preview a built-in sound to check it is audible. Muting leaves only a visual reminder.

Does the online alarm clock need an internet connection?

The page needs an internet connection to load, but the alarm does not need to stay connected after the page and sound are loaded. It uses your device clock in the browser. Keep the tab open and the device awake while you wait; losing Wi-Fi alone does not stop the local timer, but closing the page or shutting down the device does.

What's the difference between an alarm clock and a countdown timer?

Use the online alarm clock when you know the clock time you want, such as 7:00 AM or 2:30 PM. Use the online timer when you want a duration, such as 20 minutes or 1 hour. The alarm clock schedules a local time and date, while a timer counts down from the length you enter.

Browser alarms are best for everyday reminders. Keep the tab open, keep your device awake, and keep the volume on.

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