The best alternative to f.lux is SunsetScreen. It's not free, so if you're looking for a free alternative, you could try RedshiftGUI or Midnight Lizard. If that doesn't suit you, our users have ranked more than 50 alternatives to f.lux and 17 are so hopefully you can find a suitable replacement. Other interesting alternatives to f.lux are Iris, CF.lumen, Eye Saver and Windows Night Light.
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.
Much better transitions and less laggy
I can change the settings in this software to activate in 24 hours but I can't active red layer in Flux in 24 hours.
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.
it is much easier to install and just works right away!
Midnight Lizard web-extension for Google Chrome™ and Mozilla Firefox™ provides custom color schemes for all websites.
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.
Iris has all the functionality of f.lux and much more
Intuitive to use and easy to install
CF.lumen - don't let your phone blind you! CF.lumen changes the colors of your Android device's display based on the position of the sun. With the default settings, your display will get a warmer tint (lower color temperature) when the sun is down, to look more like indoo.
Free software for eye protection and more! It protects your eyes while you are working on the computer. Eye Saver has three main functions: blue light filter; eliminates the invisible flickering of the display backlight; reminds you to take breaks;
Eye Saver eliminates flickering too not only filters the blue light as Flux does plus breaks timers and screen color effects. Great software.
To schedule Night Light so it turns on automatically, select Start > Settings > System > Display > Night light > Night light settings.
Lumen - magic auto brightness based on screen contents. You control Lumen simply by using your brightness keys - it'll automatically learn your preferences.
Trouble Sleeping? Device screen too bright even on the lowest brightness setting? Want to give your phone a warm look instead of that eye straining blue gaze you see at night? EasyEyes is the solution. By changing your device's color temperature, EasyEyes reduces eye strain...
NightTone makes your screen more comfortable, enjoyable and healthier by shifting the colors of your display to a warmer, eye-friendly palette. It makes you sleep and feel better.
Worlds first Myopic Defocus effect. Applies a Myopic Defocus effect on any website. This makes the screen look on the retina naturally as if it was at a greater distance. People report it being more convenient to look at.
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Can set also brightness level to change automatically. Can set the time to change to night time yourself.