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.
f.lux vs Screen Filter opinions
What makes it so good is that it's so versatile. You can set it and forget it. Or if you decide to watch a movie, and you don't want the screen dimmed, you can temporarily turn it off. I've used other screen filters, but F.Lux is the best by far!
Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.
LightBulb is an application that reduces eye strain produced by staring at a computer screen when working late hours. As the day goes on, it continuously adjusts gamma, transitioning the display color temperature from cold blue in the afternoon to warm yellow during the night.
Adaptive screen brightness and temperature for Windows and Linux.
The project is no longer being worked on and the repository has been archived
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.Discontinued
The project seems to be no longer developed. Last version, 0.2.4, released in August 2014, can be still downloaded from GitHub.
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.