A loud sound is only part of the setup
Choose the time, press Test tone, and confirm the device is loud enough from the place where it will sit overnight. Then arm the alarm. Keep this page open, connect the device to power, disable sleep, and make sure headphones or Bluetooth have not redirected the audio somewhere unexpected.
A browser alarm cannot override a sleeping computer, a closed browser, muted system audio, or aggressive mobile battery restrictions. Use a native phone or clock alarm as a backup whenever missing the alarm could cause harm or a serious consequence.
More wake-up controls
This focused page provides a basic alert and reliability check. The advanced AlarmClock.live alarm editor adds built-in sound choices, gradual sunrise, repeat days, escalating snooze behavior, labels, and dismissal challenges.
Uploaded files and microphone recordings remain local to the device as described in the Privacy Policy. Always preview a custom sound before depending on it.
What happens after you arm it?
This alarm rings at the next occurrence of the selected time on your device clock. It repeats its tone until you press Stop alarm, for at most two minutes. It is not saved if you reload or close this page. If the device sleeps or the browser suspends the page, the alert may be delayed or missed.