Online Alarm Clock
Set alarms that ring in your browser
Multiple alarms, custom sounds, repeat days, and snooze.
Alarms (0/0)
You don't have any alarms yet
Important Notice
Keep this page open in your browser for the alarm to work. Make sure your sound is on and the browser is not muted.
Online Alarm Features
Multiple Alarms
Set up to 5 different alarms at once
Repeat Days
Set alarms to repeat on specific days of the week
Multiple Sounds
Choose from several alarm sounds
Snooze
Snooze alarms for 5 minutes for a bit more sleep
Why Use an Online Alarm Clock?
An online alarm clock is perfect when you need a reliable wake-up call or reminder while working on your computer. No app installation required - just keep this browser tab open.
Whether you're taking a power nap, need reminders during work, or want a backup alarm, our free online alarm clock has you covered.
How to Use
Add an Alarm
Click "Add Alarm" to create a new alarm. You can have up to 5 alarms.
Set the Time
Click on the time to change when the alarm should ring.
Customize (Optional)
Expand settings to change the sound, add a label, or set repeat days.
Keep the Tab Open
The alarm will ring when the time comes. Make sure to keep this tab open.
Frequently Asked Questions
Will the alarm work if I close my laptop lid?
Most laptops go to sleep when you close the lid, which will stop the alarm. Change your laptop settings to prevent sleep, or use an external monitor.
Can I use this as my main alarm clock?
We recommend using this as a backup or for naps. For your main morning alarm, a dedicated alarm clock or phone app is more reliable.
What happens when I snooze?
The alarm will ring again in 5 minutes. You can snooze as many times as needed or dismiss the alarm to stop it completely.
Are my alarms saved?
Yes, your alarms are saved in your browser's local storage. They'll be there when you come back, but only on the same browser and device.