Use the Online Alarm Clock
Free online alarm clock. Set alarms with a label, repeat days, snooze and a choice of sounds, or a quick timer in 1 to 60 minutes.
- Free to use
- No signup
- Nothing to install
- Runs in your browser
07:00 “Wake up” on Mon–Fri with the gentle chime; a 30-minute timer for the oven.Open the Online Alarm Clock
Illustration. Open the tool for the real thing.
See it in action
Sample input: Time = 07:00; Label = Wake up; Volume = 66.75. Pressed Add alarm.
What is the Online Alarm Clock?
Set an alarm for any time of day directly in your browser. Give it a label, choose the days it repeats (or leave it as a one-off), pick a sound — classic beep, gentle chime, loud siren or rising tones — and set the volume. When the time comes, the page rings, shows a large alert, changes the tab title so you notice, and offers a Snooze button (5, 10 or 15 minutes) and a Stop button.
You can keep several alarms, switch each on or off, and start a quick timer with one click — in 1, 10, 30 or 60 minutes. Alarms are saved in your browser so they are still there tomorrow. The important limit: a web page can only ring while it is open and your device is awake with the sound on, so keep the tab open and use your phone's own alarm for anything critical.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Repeat on chosen days, or once.
Beep, chime, siren and rising tones with volume control.
5/10/15-minute snooze; 1/10/30/60-minute timers.
Alarms survive a reload.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
Used for
Pick one to see how it fits.
How it compares
A plain look at this tool next to the usual alternative.
| This utility | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
| Where it runs | In your browser tab | On your computer |
Questions people ask
Will the alarm ring if I close the tab?
No. A web page can only ring while it is open. Keep the tab open, or use your phone's alarm for critical wake-ups.
Does it work in a background tab?
Yes, though some browsers may delay timers slightly in very long-idle tabs.
Are my alarms saved?
Yes, in this browser's storage, and only there.
How do I make a one-time alarm?
Untick all the repeat days, or use a quick timer button.
Can it show a notification?
If you allow notifications it also shows one when the alarm rings.
More free tools
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Try the Online Alarm Clock now
Free alarm clock with sounds, repeat days, snooze and quick timers — right in your browser. Free to use.
Try it free