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.




LightBulb is described as 'Background application that adjusts screen gamma, making the colors appear warmer at night, reducing strain on your eyes' and is a very popular color temperature tool in the os & utilities category. There are more than 50 alternatives to LightBulb for a variety of platforms, including Windows, Mac, Linux, Android and Wayland apps. The best LightBulb alternative is f.lux, which is free. Other great apps like LightBulb are Redshift, Red Moon, Iris and Iris mini.
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.

The app is free on F-Droid and on GitHub but you can buy it on the Google Play Store to support the developer.




Reduces blue light and flicker for eye comfort, supports auto color temperature adjustment based on time, customizable modes, overlays, color and font options, docking station support, and accessible part-screen filtering for diverse needs.


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.



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.



The app filters the blue spectrum on your phone or tablet after sunset and protects your eyes with a red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.



Adjust the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night.
Whether you're a morning lark or night owl, SunsetScreen allows you to set the time of the sunset and sunrise, so you can have full control over your sleep cycle.



CareUEyes is a very simple but useful program when it is about your eye care. The program comes with a very simple and clean interface and needs to technical knowledge. Even a novice computer user can download and use it easily.



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