Online Alarm Clock
Set a free online alarm for any time. It rings with a sound and a desktop notification.
Current time
Pick a time in the panel, then set the alarm.
Set an alarm for a common time
Each opens the alarm clock already set to that time.
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- Countdown TimerSet a custom duration and count down to zero. Perfect for cooking, meetings, and focus.
- StopwatchMeasure elapsed time with precision and record laps. Great for workouts and races.
- Reaction Time TestClick when the box turns green to measure your reaction time in milliseconds.
- Visual TimerA classroom timer: a shrinking disk, an hourglass or draining water, a full-screen room glow and a bell at the end.
- Pomodoro Timer25-minute focus sessions with breaks, plus today's sessions, a 26-week focus heatmap and your streak.
- Interval TimerAlternate between work and rest periods automatically. Perfect for HIIT and Tabata.
How to use it
- 1
Set the time
Choose the time you want the alarm to ring.
- 2
Add a label
Optionally name it, like “Wake up.”
- 3
Set alarm
Keep the tab open — it rings with sound and a notification.
Perfect for every need
Wake-up alarm
A reliable morning alarm right in your browser.
- Mornings
- Naps
- Early starts
Reminders
Get alerted at a specific time without installing anything.
- Meetings
- Medication
- Oven timer
Focus & breaks
Ring yourself out of a work session at a set time.
- Break reminders
- Time-boxing
Frequently asked questions
Does the alarm work if I switch tabs?
Yes, on a computer: keep the tab open (it can be in the background) and it rings on time. If you close the browser, the alarm won't ring. Phones pause background tabs and locked screens, so on a phone keep the screen on with this page open.
Will I get a notification?
Yes, if you allow notifications when prompted. You'll also hear a sound when the alarm rings.
Is it free?
Completely free, with no sign-up and no download required.