What is it?
The Online Alarm Clock sets alarms in your browser, with no app to install. Add several alarms, name each one, repeat it daily, and choose its sound and volume.
Who is it for?
People at computers who need reminders (meetings, medicine, breaks), students, and anyone without an alarm handy.
How to use it
- Pick the Alarm time, add a label (e.g. Wake up), choose sound and volume; Test sound.
- Tap Add alarm.
- When it rings, tap Stop or Snooze 5 min.
Important
Don’t rely on a browser alarm for flights, medicines or early exams: also set your phone’s Clock app, which rings even when locked.
Errors and how to fix them
- “Pick a time first”
- This browser cannot keep the screen on. Change the screen timeout in your phone settings instead.
- Didn’t ring or beep: browser timers and alarms only work while the page is open. Keep the tab open, the volume up, silent mode off, and increase the screen timeout. For important alarms, use your phone’s own Clock app too.
Questions people ask
- Can I set several alarms? Yes, each with its own label and sound.
- Does repeat work every day? Yes, as long as the page stays open.
Practical tip
Test the alarm sound before relying on it, and give each alarm a clear label (“Leave for school”, “Medicine”). For anything important, also set the same alarm in your phone’s Clock app.
Open the tool: Online Alarm Clock
Still stuck?
Contact support. Tell us which tool or page you were using, what you tapped, what you saw, and your phone or computer and browser (for example: Android phone, Chrome). We reply by email.
Questions, or an error not listed here?
Tell us in the comments: what you were doing, the exact message you saw, and your device and browser. We read every comment and add new fixes to this article.