🔔 Classroom Bell
No school-wide bell, or every classroom on a different schedule? Put a class bell on your classroom screen. It rings on the schedule you set and announces what comes next out loud.
Try it now →A free classroom bell that rings on your schedule
A bell that follows your schedule
Set when first period starts, how long classes and breaks are, lunchtime, and how many periods each weekday has, and the bell rings right on time. You can switch to a shortened schedule for just today in one step.
Spoken announcements
After the bell rings, it reads out what's next, like "Period 3, Science, is starting. Class runs until 10:50." It also reminds students what supplies each subject needs.
Automatically off on holidays and vacations
Pick your school and it loads the NEIS school calendar (for schools in Korea), so the bell stays silent on school closure days, vacations and public holidays.
Special schedules for event days
Set up a one-day schedule ahead of time for sports day, exams or field trips, and on that day the bell automatically follows it.
111 screen themes
Choose from 111 screen themes — clocks, progress bars, a globe, a photo slideshow and more — to fit your classroom.
How to use it
- Open classmate.intentcode.co.kr in the browser on your classroom computer or interactive whiteboard.
- Tap ‘Turn on sound & voice’ once (browsers require one tap before they can play sound).
- In Settings, set your schedule and your school.
- Leave the screen on and the bell rings all day. Turn on ‘Keep screen awake’.
Frequently asked questions
Do I need to install anything?
No. It runs right in your web browser. If you like, use ‘Install as app’ to add an icon.
Does the bell stop if the internet goes down?
A screen that is already open keeps ringing the bell without internet. After you have opened it once, you can reopen it even during a short outage.
Is it free?
Yes, it is free and needs no sign-up. Your settings are saved only in that device's browser.