Online Alarm Clock – Set Free Browser Alarms
Set alarms directly in your browser with custom sounds and labels. Free, instant, and no download required — just keep the tab open.
00:00:00
Set New Alarm
:
Your Alarms
No alarms set
Results
What is this tool?
An online alarm clock is a browser-based tool that lets you set one or multiple timed alarms without downloading any app. You choose the exact time, pick a ringtone or alert sound, add an optional label, and the alarm fires right in your browser tab. It is useful for morning wake-up reminders, meeting alerts, medication reminders, and any time-sensitive notification you need while working at a computer. Because it runs in the browser, the tab must stay open and your device must remain awake for the alarm to sound.
How to use this tool?
1. Enter the alarm time using the hour and minute fields (12- or 24-hour format).
2. Choose an alarm sound from the available ringtone options and preview it if needed.
3. Optionally add a label (e.g., "Take medication" or "Join call") to identify the alarm.
4. Click "Set Alarm" to activate — the alarm is now scheduled.
5. Keep this browser tab open and your device volume turned up.
6. When the alarm time arrives, the ringtone plays and the label is displayed. Click "Dismiss" or "Snooze" to manage it.