Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.
Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux
- BSD

There are many alternatives to f.lux for Windows if you are looking for a replacement. The best Windows alternative is Redshift, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to f.lux and many of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to f.lux are LightBulb, SunsetScreen, RedshiftGUI and Iris mini.
Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.

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


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.



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.



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.



Redshift Tray is a no-frills GUI for the screen temperature adjustment tool Redshift.



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.


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.




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;



World's first instantaneous content-aware brightness control app that let your screen’s brightness and color temperature adapt instantly and automatically to provide the most optimal viewing experience for your eyes.




This is open source, while f.lux wants you to download a binary and run it constantly on your system.