DDCcontrol is described as 'Is software for controlling monitor parameters such as brightness, contrast, and RGB color levels. It includes a command-line tool and a GUI tool' and is an app in the system & hardware category. There are more than 10 alternatives to DDCcontrol for Mac, Windows, Linux and Python. The best DDCcontrol alternative is Twinkle Tray, which is both free and Open Source. Other great apps like DDCcontrol are MonitorControl, Monitorian, ddcutil and ddcui.
The app lets you control the brightness of all your screens (both laptop and desktop) by a single click on a tray icon. Its look goes nicely with the system icons and it supports both light and dark mode.
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This small utility will try to make controlling your external monitor brightness and contrast easier. Also it have day and night presets, which stored in a right-click on a button.
Simple Screen Brightness is a small portable application written in C# that allows you to adjust the brightness for all of your connected monitors using a slider without having to use their difficult-to-use built-in menu systems.
Focus view, extra brightness, ambient glow, and keep awake — all from your menu bar. JoyScreen transforms how you use your Mac.
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Python monitor control using the VESA Monitor Control Command Set (MCCS) over the Display Data Channel Command Interface Standard (DDC-CI).
