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DeciBar icon

DeciBar for Mac

Ambient sound level monitor for the menu bar, inspired by the Apple Watch Noise app.

By gostonx. Free and open source, MIT licence.

Get it with OpenDMG View source on GitHub

DeciBar at a glance

Released
8 July 2026
Download size
471 KB
Works on
Apple silicon and Intel
Licence
MIT
Category
Menu Bar and Notch
Developer
gostonx
GitHub stars
1

About DeciBar

A lightweight native macOS menu bar utility that estimates ambient noise levels in real time, logs history, and shows weekly exposure insights

How to install DeciBar on a Mac

  1. Get OpenDMG. It is a free app store for open source Mac apps. Download OpenDMG.
  2. Search for DeciBar and press Get. OpenDMG downloads version from gostonx's own GitHub release.
  3. Open it. The download is checked against its SHA-256 fingerprint and its signature is checked on your Mac before it lands in Applications.

Updates to DeciBar show up in OpenDMG and install with one button. No account is needed.

Prefer to do it by hand? The developer's file is on GitHub: DeciBar.dmg (471 KB).

What is new in DeciBar 

DeciBar is a lightweight native macOS menu bar utility that estimates ambient noise levels in real time, logs history, and shows weekly exposure insights.

## Install

Download DeciBar.dmg, open it, then drag DeciBar into the Applications folder. On first launch the app requests microphone access so it can estimate ambient sound levels.

All processing happens locally on your Mac. Audio is never recorded or transmitted.

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