Software that makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day.




Gamma Dimmer is described as 'Dim any screen and keep color accuracy' and is a Screen Dimmer. There are more than 50 alternatives to Gamma Dimmer for a variety of platforms, including Windows, Mac, Linux, Wayland and Android apps. The best Gamma Dimmer alternative is f.lux, which is free. Other great apps like Gamma Dimmer are Redshift, Twinkle Tray, Solace and Dimly.
Software that makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day.




Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.

Twinkle Tray enables brightness control on external displays in Windows 10 & 11. Even th Windows is capable of adjusting the backlight on most monitors, it doesn't support external monitors natively.

Automatically changes Mac appearance using real-time weather, sunlight, and time data for light and dark modes, dynamic wallpapers, and color temperature, with on-device privacy, menu bar access, no subscriptions, and no analytics for seamless daily comfort.




Open-source macOS menu utility for unified brightness, blackout, and sleep control of external monitors, using hybrid DDC/CI and software overlays, per-display settings, custom profiles, hotkeys, panic shortcut, privacy by design, and secure signed builds.



Background application that adjusts screen gamma, making the colors appear warmer at night, reducing strain on your eyes.


Monitorian is a Windows desktop tool to adjust the brightness of multiple monitors with ease.

RedshiftGUI changes the color temperature of your monitor to better match that of your surrounding. This means that it sets a cooler color temperature during the daytime (due to natural lighting) and sets a warmer temperature at night (due to indoor lighting). Similar to f.





Screen dimming software that allows you to control the brightness of your screens as well as external monitors.

Enjoy free cross-platform blue light reduction and PWM flicker-free brightness control with Iris mini. Minimalistic design, portable, and automatic for no-hassle, eyestrain-relief across all devices. Simply double-click to activate, perfect for every lighting condition.



Windows implementation of the ddcutil Linux program for querying and changing monitor settings, such as brightness and color levels.