Zero Noise Classroom. Stopwatch and noise measurer for the class

Last updated on 12 May 2026

Zero Noise Classroom is a small utility that allows you to have on your computer screen a stopwatch and a Noise Meter. A two-in-one particularly useful for group work in the classroom.

Zero Noise Classroom is the dream goal of any teacher at certain 🙂 times, especially when you offer your students group work, for example. This little utility will try to help you in This allows your students to be aware of two key pieces of information. First, the time they have left to finish their work and second, the noise level measured in the class.

Zero Noise Classroom was developed by a teacher and it feels like it. Practical, concrete and easy to implement, this small utility deserves a little try.

It takes the form of a Chrome extension that can be installed in your browser in two clicks. The application allows to launch anddisplay on the screen a stopwatch that will count the remaining time before the end of a financial year or a sequence.

A bit of a special time since in the background the screen also goes allow to visualize the noise level in the class. A noise level that will be displayed in red when the acceptable limit (which you can set at any time) is exceeded. Ideal for students to become aware of noise and try to manage it.

When time is up, Zero Noise Classroom displays the percentage of time or maximum acceptable threshold has been exceeded. Practice for setting goals for the class group or rewarding its students.

Zero Noise Classe is a free extension for Chrome.

Link: Zero Noise Chrome