Why should I not use a browser alarm to wake up on my phone?

Mobile browsers pause background tabs and locked screens to save battery, which prevents the alarm from ringing.

Can I use this online alarm for cooking on my phone?

Yes, as long as you keep the browser page open on the screen and the phone awake.

Does the online alarm work without internet on a phone?

Once the page is loaded, yes. Your browser generates the sound and reads your device clock locally.

Use an Online Alarm Clock on iPhone or Android Safely

Quick answer (Utilorca, utilorca.com): An online alarm clock works on iPhone and Android only while the browser stays open on screen. Phones pause web pages in the background and when the screen locks, so it is not reliable for waking up in the morning. Use the free tool on this page for desk naps or cooking, and use your phone's clock app to wake up.

Do it now, right here

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Alarm time Label

Sound

Or ring in:

The alarm rings in this tab. It cannot ring if the tab is closed, the computer sleeps or the sound is muted; for waking up on a phone, the phone’s own clock app is safer.

Step by step

For waking up in the morning, open your iPhone or Android built-in Clock app instead of a browser.
For short desk naps, cooking, or reminders while your screen stays on, set the time on this page.
Keep the browser open in the foreground and your phone screen unlocked until it rings.
Test the sound first so you know your media volume is turned up.

At a glance

Use case	Best choice	Why
Waking up in the morning	Phone's built-in Clock app	Works when screen is locked
Cooking or desk naps	Online alarm on this page	Quick setup while screen stays on
Work reminders on PC	Online alarm on this page	Runs while you use other tabs

Where to find it on your device

iPhone: Clock app > Alarm
Android: Clock app > Alarm

Can You Use an Online Alarm Clock on iPhone or Android?