Free · offline · no sign-up
Online alarm clock
Set an alarm for a specific time of day in the browser tab you already have open. No app to install, and nothing to sign into.
Opens a fresh page with just this tool on it. Everything else is one click away.
How to use it
- 1 Set the time you want the alarm to go off.
- 2 Label it so you know what it is for.
- 3 Leave the tab open, and the alarm sounds and notifies you at the set time.
Frequently asked questions
Will the alarm work if the tab is in the background?
Yes. It fires even if the tab is backgrounded or you are looking at a different workspace in KontrolRoom, as long as the browser itself stays open.
Can I set more than one alarm?
Yes. Add as many alarms as you need within a single alarm block, each with its own time, label and repeat setting.
Do I need to allow notifications?
The alarm plays a sound on its own. Allowing browser notifications also gives you a system notification, which helps if you are in another tab.
It is not just this one tool
The online alarm clock is one block inside KontrolRoom, a modular workspace with notes, a calculating workbook, task boards and 20+ other utilities you can arrange on a single canvas. It all runs locally in your browser, works offline and costs nothing.
Explore the full workspace