How to use it
- Enter a repeat interval in minutes or choose a preset.
- Adjust sound and screen flash for your work environment.
- Press Start and keep this browser tab open.
- When the alarm rings, dismiss the current alert to continue.
Online Repeat Alarm
Set a minute interval, keep this tab open, and let your browser bring your attention back again and again. Useful for focus blocks, monitoring, night shifts, stretch breaks, and water reminders.

Online Repeat Alarm
Ready
Works while this browser tab stays open.
This tool runs inside your browser. If the device sleeps, the tab is closed, or the browser suspends the page, alarms may be delayed or stop. Do not use it for medical, driving, emergency, or safety-critical reminders.
A repeat alarm online is useful when you are already working in a browser and need a simple reminder that keeps coming back. It can act as a browser alarm for focus sessions, monitoring work, short breaks, or routine check-ins without installing another app.
An interval alarm is best when the goal is to be interrupted at a steady rhythm, such as every 10, 25, or 50 minutes. A stopwatch or countdown timer is better when you only need one ending point.
25-minute focus blocks with short breaks
An alarm every 10 minutes for quick check-ins
Stand up and stretch every 50 minutes
Drink water every 30 minutes
Check dashboards during night duty
Review server or order screens on a schedule
Create eye-rest reminders during long study sessions
Use 10 minutes for quick check-ins, 25 minutes for focus blocks, 30 minutes for water reminders, and 50 minutes for stretch reminders or longer work sessions. You can also enter a custom minute value for any repeating timer for work.
No. This repeat alarm runs while the browser tab is open and your device is awake.
Yes. Turn sound off and keep the visual overlay or screen flash enabled.
Yes. Disable sound and leave screen flash on if you need a quiet visual reminder.
This tool is designed for active browser work. Use a phone alarm as well for important schedules or long background reminders.
Yes. Enter 10 minutes or choose the 10 min preset to create a repeating browser alarm for quick check-ins.
Yes. The 25 min preset works well for focus blocks, study sessions, and recurring work reminders.
It repeats until you stop the schedule. Keep the browser tab open and dismiss each alert to continue the next interval.
Yes. Set the interval you want and use the repeat alarm as a simple online reminder for stretching, water, eye rests, or routine check-ins.
Timer, stopwatch, and date calculator tools are planned for future ON-TOOL releases.