Alarm Clock
Set a free online alarm clock in your browser — pick a time, choose a sound, and get alerted — free, fast and private.
Keep this tab open — the alarm sounds in this browser tab at the time you set. Your device must stay awake with the tab open.
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No alarm set yet.
How to use Alarm Clock
- Pick the time you want to be woken or reminded.
- Optionally add a label and choose a sound.
- Click Set Alarm and keep this tab open — the alarm will sound at the set time.
Note: this tool runs in your browser. Nothing is uploaded.
Frequently Asked Questions
Is this online alarm clock free?
Yes, it is free with no sign-up.
Does the alarm work if I close the tab?
No. The alarm runs in this browser tab, so keep the tab open and your device awake.
Will the alarm sound if my computer sleeps?
No — if the device sleeps, the browser cannot play the sound. Keep the device awake.
Can I set more than one alarm?
This version handles one alarm at a time. Set a new alarm after the first one rings.