複数アラーム

How to use

1. Click "Add Alarm" and enter the time (HH:MM) and a label.
2. Enable the alarm with the toggle switch.
3. Keep this browser tab open — the alarm will beep when the time matches.

Related time tools

• Multiple Timers
• Stopwatch with Laps
• Pomodoro Timer
• Countdown Timer

よくある質問

Is the multiple alarm tool free?

Yes, completely free with no signup and no usage limits.

Does my data leave my device?

No. All alarm logic runs locally in your browser. Nothing is sent to any server.

Does it work on mobile?

Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome. Keep the browser tab open for alarms to fire.