How to use the Online Alarm Clock
- Set the alarm time
- Choose a sound and label
- Keep this tab open — it rings at the set time
About this tool
Set an online alarm clock that rings in your browser at the time you choose. Online Alarm Clock is part of ToolNest's collection of free date & time. It works instantly in your browser with no account and no installation.
Frequently asked questions
Is the Online Alarm Clock free to use?
Yes. Online Alarm Clock on ToolNest is completely free, with no sign-up, no watermark and no daily limits.
Is my data private?
Yes. Online Alarm Clock runs entirely in your browser. Your text and data are not uploaded or stored on our servers.
Does Online Alarm Clock work on mobile phones?
Yes. ToolNest works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux. There is nothing to install.