Introduction

Mac users connecting to third-party monitors have long faced a pain point: the keyboard brightness keys only work for the built-in display, so adjusting an external screen means reaching for its physical buttons. MonitorControl solves this — once installed, your keyboard brightness and volume keys can control external displays directly, complete with the native macOS adjustment overlay, matching the experience of an Apple-branded display.

A slider also appears in the menu bar, letting you adjust each screen individually or sync all displays with a single slider. It can lower brightness below the hardware minimum (by software overlay dimming), which is especially useful at night.

Installation

1
brew install --cask monitorcontrol

Or download the .dmg directly from the Releases page.

After installation, grant accessibility permissions in System Settings > Privacy & Security > Accessibility to use keyboard brightness control.

Visit

Click the link below to visit the repository. Please give the original author a star!

🔗 github.com/MonitorControl/MonitorControl