Display Brightness
No more fiddling with monitor buttons. Tuno adjusts the external display’s own brightness from the menu bar and the keyboard.
DisplaysAdjust your external display's brightness here or from the keyboard.
External DisplayHardware control
Brightness keys control external displaysKeys adjust whichever display the pointer is on.
Try it.
Drag the slider and watch the screen change.
In the evening, dim it.
A brightness that’s easy on the eyes.
In the daytime, brighten it.
A clear picture, even in a bright room.
From the keyboard.
The brightness keys adjust whichever display the pointer is on.
Common questions
How to change external monitor brightness from your MacmacOS can’t change the brightness of most external monitors. Tuno controls it with the brightness keys or a slider in the menu bar: it talks to the monitor directly (DDC/CI) and dims it in software when the monitor doesn’t listen.How to change external monitor resolution and HiDPI on MacTuno lists every resolution your external monitor supports, marks the sharp (HiDPI) ones, and lets you switch from the menu bar or Tuno › Displays.
More features.
Get Tuno for your Mac.
Download for MacmacOS 15 or later