Skip to content
M2TOOLKIT

Online Alarm Clock

Set alarms that ring right here in your browser.

  • Free
  • No sign-up
  • Runs in your browser

--:--:--

No alarms on

  • 07:00Wake up
Keep this tab open with your volume up — browsers can’t ring alarms from closed tabs. Alarms are saved in this browser.

Everything you type is processed in your browser. Nothing you enter is sent to our servers or stored by us.

How to use the Online Alarm Clock

  1. Choose a time and an optional label, then add the alarm.
  2. Keep this tab open with your sound on.
  3. Stop or snooze the alarm when it rings.

What does this tool do?

Useful for naps, breaks, medication reminders or making sure you don't miss a meeting while you're focused at your desk. You can keep several alarms and switch them on and off.

Alarms ring with a generated tone, so there's nothing to download. Everything you add is saved in this browser only — no account, nothing uploaded.

Why use it?

  • Multiple labelled alarms.
  • Snooze for five minutes.
  • Shows time until the next alarm.

Accuracy and limits

  • Browsers can't play sound from a closed tab, and some pause background tabs on phones. Keep the tab open and visible for reliable alarms.

Privacy

Everything you type is processed in your browser. Nothing you enter is sent to our servers or stored by us. There's no account to create and nothing to install.

Last reviewed by the M2Toolkit team.

Other tools people use alongside the online alarm clock.