Free Online Alarm Clock
Never miss an important event, meeting, or wake-up time again. Our free online
alarm clock allows you to easily set custom alarms directly in your web browser. No software installation,
mobile app download, or syncing required. Just set your time and let the alarm sound when you need it most.
How Does the Online Alarm Work?
The alarm syncs with your computer's local system time. Once you set a specific hour and
minute, the browser calculates the remaining duration and triggers a loud audio alert when the target is
reached.
- Multiple Alarms: Set one for waking up, another for a medication reminder, and a third for
an evening meeting. If you log in, all your alarms are securely saved in your browser for next time.
- Custom Labels: Organize your schedule by naming your alarms (e.g., "Take out the trash",
"Zoom meeting").
- Accessible Anywhere: Works seamlessly on Windows, Mac, Linux laptops, and modern mobile
browsers.
Important Tip: To ensure the alarm rings loudly, please verify that your device is not on
mute, the browser tab is not muted, and your system volume is turned up to an audible level.