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Online Alarm Clock

Set a browser alarm for any time, with a live clock and a loud on-screen ring plus sound.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Read the current time from the live clock at the top of the tool; it updates every second in your device's local time.
  2. 2.Pick your alarm time with the time picker, and optionally type a short label so you remember what it is for.
  3. 3.Press Set alarm to arm it; the status line confirms the target time. Keep this tab open and your device awake.
  4. 4.When the alarm rings, press Dismiss to stop it, or Snooze to ring again in five minutes.

About Online Alarm Clock

This online alarm clock does two simple jobs well: it shows you the current time, ticking live every second, and it rings at a time you choose. There is nothing to install and no account to create. Open the page, pick a time, add an optional label, and switch the alarm on. When your computer's clock reaches that minute, the tool shows a bold on-screen "Alarm!" banner, plays a repeating beep, and displays your label so you know exactly why it went off. It is the fastest way to turn any browser tab into a dependable reminder.

The live clock at the top always reflects your device's local time in 24-hour HH:MM:SS format, refreshing once per second. That makes the page useful even when you are not setting an alarm at all: keep it open as a large, glanceable desk clock while you work, cook, study, or run a meeting. Because the clock reads your own device's time zone, the alarm you set matches the time on your phone and wall clock, with no time-zone math to worry about.

Setting an alarm takes two clicks. Choose a target time with the time picker, type a short label such as "Standup meeting" or "Take the bread out" if you like, and press Set alarm. The status line confirms the alarm is armed and shows the exact target time. When the moment arrives the alarm fires only once for that minute, so it will not stutter or double-trigger. You can stop it with Dismiss, or press Snooze to push the alarm forward five minutes and get a second nudge. To change a running alarm, turn it off and set a new one.

Common uses include timeboxing focused work, remembering to leave for an appointment, pacing workouts or rest intervals, waking up from a short nap, reminding yourself to join a call, and keeping an eye on laundry, parking meters, or something in the oven. Paired with a countdown timer or stopwatch, it covers most everyday timing needs without any extra software.

Privacy is straightforward because everything happens on your own device. The current time is read from your browser, the alarm comparison runs in your browser, and the beep is generated by your browser's built-in audio. Nothing you type, and no alarm you set, is uploaded, logged, or shared. There are no sign-ups, no tracking of your schedule, and no data leaving your machine.

One honest limitation is worth stating plainly: this is a browser-based alarm, so the tab must stay open and your device must stay awake for it to ring. If you close the tab, quit the browser, or let the machine sleep or lock, the alarm cannot sound. For anything critical, keep the tab visible and consider disabling sleep, or use a dedicated device alarm as a backup. Within those bounds it is a quick, reliable, and completely private way to set an alarm from any browser.

Frequently asked questions

Will it ring if I close the tab?
No. This is a browser-based alarm, so the tab must stay open and your device must stay awake and unlocked for it to ring. If you close the tab, quit the browser, or let the computer sleep or lock, the alarm cannot sound. Keep the tab visible for anything important.
Is a sound played?
Yes. When the alarm fires it shows a bold on-screen "Alarm!" alert and plays a repeating beep generated by your browser's built-in audio. The sound keeps looping until you press Dismiss or Snooze. Because browsers require a user interaction before playing audio, setting the alarm with a click enables the sound.
Is anything uploaded?
No. The current time, the alarm time you set, and any label all stay in your browser. Nothing is uploaded, logged, or shared, and there is no sign-up. The alarm check and the beep run entirely on your device.
Does the alarm ring more than once per minute?
No. The alarm triggers only once for the target minute, so it will not double-fire or stutter. Use Snooze to intentionally get another ring five minutes later, or turn the alarm off and set a new time.

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