Alarm Clock
Set a quick alarm in your browser for a meeting, a break, or anything else later today. Pick a time, a label and a sound, and the page rings until you stop or snooze it. Several alarms can be set at once, and each one shows how long remains. Because it is a web page, it rings only while the tab stays open and the device is awake.
Set an Alarm
Important: this alarm only rings while this browser tab stays open, the volume is on and your computer or phone is awake. Do not rely on it for medication or waking up for travel.
Current time
--:--:--
Your alarms
- No alarms set.
How to Use the Alarm Clock
- Choose the alarm time and, optionally, a label and sound. Press Test sound to check your volume.
- Press Set alarm. If the time has already passed today, it is set for tomorrow.
- Keep this tab open. When the alarm rings, press Stop alarm or Snooze.
- Remove an alarm from the list with its Remove button, or press Reset to remove them all.
About This Tool
People working at a computer who need a reminder, students timing study blocks, and anyone without a phone handy.
Input: Time · Output: Sound and on-screen alert.
Features and Limitations
Features
- Multiple alarms with labels and a countdown to each.
- Four generated sounds; no audio files are downloaded.
- Snooze from 1 to 30 minutes.
- Visible, announced alert that does not flash; optional system notification.
Limitations
- Rings only while the tab is open, the browser is running and the device is awake.
- Alarms are not saved: reloading the page removes them.
- Some phones pause background tabs, so a phone's own clock app is more reliable.
- Results are computed in your browser; nothing you enter is sent to a server.
Frequently Asked Questions
Will the alarm ring if I close the tab?
No. A web page cannot run after it is closed. Keep the tab open (it can be in the background) and keep the device awake.
Will it work when my laptop goes to sleep?
No. While the computer sleeps nothing runs. When it wakes up, any missed alarm rings straight away.
Why is the sound not playing?
Make sure the tab is not muted and the volume is up, and use Test sound. Browsers only allow sound after you click something on the page, which Set alarm does.
Can it repeat every day?
No. Each alarm rings once. Leave the tab open and set it again the next day, or use your phone's alarm for repeating alarms.
Related Tools
More like this: all Timers & Clocks tools, all Productivity tools or the TinySandy home page.