Your monitors,
from the menu bar.

Set brightness, contrast and volume on external displays without reaching for their buttons, and make your Mac's brightness keys work on them too. Free and open source.

Download for Mac

$brew install --cask rahgurung/tap/displaydeck

Apple Silicon Mac · macOS 14 Sonoma or later

FinderFileEditView

Sun 18 Oct10:30

Built-in Retina DisplayBuilt-in

Studio Monitor 27Hardware (DDC)

55 50 30

2560 × 144060 Hz

Mirror displays

Refresh DisplaysSettings…Quit

Go ahead, drag the sliders.

Everything your monitor's buttons do, minus the buttons.

DisplayDeck lives in the menu bar and talks to your displays directly, so the settings you change are the real ones.

Real brightness

Changes the monitor's own backlight over DDC/CI, not a dark overlay, so blacks stay black and power use drops.

Brightness keys that work

Press F1 F2 and the display under your pointer responds, with a clean on-screen indicator.

Monitor speakers

Control the volume of speakers built into your monitor, from a slider or your volume keys.

Contrast

Fine-tune contrast on monitors that support it, right next to brightness.

Resolution & refresh rate

Switch resolution and refresh rate per display in two clicks, no System Settings detour.

Mirroring & login

Toggle display mirroring from the menu, and have DisplayDeck start quietly when you log in.

How it works

Most monitors accept commands over the same cable that carries the picture. DisplayDeck uses that.

Install and open DisplayDeck. It appears as in your menu bar.
Click it to see every connected display with its own sliders.
Optionally allow Accessibility access so your brightness and volume keys can control external monitors.

Works with most monitors

DisplayPort and USB‑C monitors almost always support hardware control. Some HDMI ports, TVs and docks don't pass it through.

When a display can't be controlled directly, DisplayDeck falls back to software dimming, so the slider always does something.

Private by design

DisplayDeck sends a few anonymous usage stats (app and macOS version, how many displays you use and which options are on) so it can get better. No personal data, ever, and you can switch it off in Settings.

Open source, MIT licensed

About 1,000 lines of Swift with no dependencies. Read it, build it yourself, or contribute on GitHub. Releases are signed and notarized by Apple.

Take control of your displays.