Blueshift is described as 'Inspired by Redshift, Blueshift adjusts the colour temperature of your monitor according to brightness outside to reduce eye strain and make it easier to fall asleep when going to bed' and is a color temperature tool in the system & hardware category. There are more than 10 alternatives to Blueshift for a variety of platforms, including Linux, Windows, Mac, Wayland and Mozilla Firefox apps. The best Blueshift alternative is f.lux, which is free. Other great apps like Blueshift are Redshift, Solace, LightBulb and waysn.
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;
United Kingdom
This advanced Windows app allows you to alter the screen shading according to the time of day, which is great if you work outside the normal hours, or if you need a lift in the afternoon. You can set the colour tints and your awake and sleep times.
India
Setting the color temp of the screen really only requires about 40 lines of C (80 or so all inclusive). sct is a crude utility which does roughly that. I’d say exactly that, but some of the calculations aren’t actually exact.
SunshinePal is your daily sunlight companion designed to help you track your exposure, set healthy goals, and reconnect with nature for better sleep and mood.
Thailand
Away From Keyboard is an app that reduces eye strain with reminders to take a break.
Small GTK GUI application to set contrast, brightness and gamma for wayland compositors which support the wlr-gamma-control protocol extension. Basically this is the example from here: https://github.com/swaywm/wlroots/blob/master/examples/gamma-control.
EyeAway is a beautiful, privacy-first macOS app that helps reduce digital eye strain using the proven 20-20-20 rule. Every 20 minutes, look 20 feet away for 20 seconds - your eyes will thank you.
