Redshift Tray is a no-frills GUI for the screen temperature adjustment tool Redshift.
- Control Redshift based on location, custom night/day times, or manually
- Enable/disable by double-clicking the tray icon
- Has lots of other features via hotkeys



The best Health alternative to f.lux is Redshift Tray, 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 four of them are Health Tools so hopefully you can find a suitable replacement. Other interesting Health Tool alternatives to f.lux are Iris, CareUEyes and Mirage - Screen Filter.
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.


Intuitive to use and easy to install


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.


World's 1st 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.




Iris has all the functionality of f.lux and much more