Dimmer is described as 'Adjust the brightness of all monitors, screens and displays' and is a Screen Dimmer in the system & hardware category. There are more than 50 alternatives to Dimmer for a variety of platforms, including Windows, Mac, Linux, Wayland and Android apps. The best Dimmer alternative is f.lux, which is free. Other great apps like Dimmer are Redshift, Twinkle Tray, Solace and LightBulb.
The program is designed to adjust the brightness of monitors, laptop displays and other equipment. Runs on Windows 7+ and does not require installation. Works with all external monitors that have DDC/CI support, as well as with built-in displays of laptops, all-in-ones and...
Shady puts a shade over your screen to help soothe your tired or dazzled eyes. You can use it to reduce your Mac's brightness far below the usual minimum, without any risk of damage to your screen.
United Kingdom
Multiscreen Blank v2 is an easy-to-use utility that allows you to independently blank out or dim one or more monitors connected to your computer, as well as mirroring the contents of screens that are physically located in another room or turned off.
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.
SunshinePal is your daily sunlight companion designed to help you track your exposure, set healthy goals, and reconnect with nature for better sleep and mood.
Thailand
A Python program that calculates ambient brightness and sets screen's correct backlight using a camera.
Adaptive per-monitor brightness manager for Windows that automatically dims inactive displays, with two-stage dimming, burn-in protection, break reminders, and energy usage statistics.
Germany
EU
Lumen - magic auto brightness based on screen contents. You control Lumen simply by using your brightness keys - it'll automatically learn your preferences.
United States
Monitor Bright reduces with a simple trick the monitor brightness. Useful to use the PC at night without getting blind if the minimum brightness that can be obtained adjusting monitor settings is still too high if compared to ambience brightness. Supports multi monitor systems.
ItalyEU
darkbright-helper is a hotkey dimmer for Windows monitors that does not stop at 0%: it lowers the real backlight over DDC/CI, then keeps dimming with a black overlay below the hardware minimum.
GermanyEU
Small GTK GUI application to set contrast, brightness and gamma for wayland compositors which support the wlr-gamma-control protocol extension. Basically this is the example from here: https://github.com/swaywm/wlroots/blob/master/examples/gamma-control.
