Overview
Browser alarms can fail silently. These settings and habits keep your wake-up routine dependable.
Play the alarm once in the bedroom at the volume you will actually use. A browser alarm only rings while that tab can run.
How to use it
- Open Alarm Clock.
- Set the time, play the sound once, and leave the tab open overnight if this is a wake-up.
- Keep Morning Alarm or Gentle Wake Alarm for a second phase.
Good to know
Do not use a browser alarm as the only alert for medicine, travel, or anything unsafe to miss. A locked phone can delay it.
The tools are free on the TimerClock home page. Settings stay in this browser. The privacy policy explains what is stored.
Frequently asked questions
What is this guide for?
Browser alarms can fail silently. These settings and habits keep your wake-up routine dependable.
Which TimerClock page should I open?
Start with Alarm Clock. Use Morning Alarm when you want a closer variation.
Will it ring if I close the laptop?
No. The page has to stay available. A closed lid or a sleeping phone can skip the beep.
How do I know the sound is loud enough?
Play it once in the real room, with the same volume and the same distance you will have at wake-up.
When was this guide updated?
October 2, 2026. The steps match the tools linked on this page.