f.lux is the pioneer of screen warming software. It automatically adjusts your screen color based on the time of day and your specific location.
Iris is a powerful alternative for those who want more than just a color shift. It offers specialized modes for reading, programming, and movie watching. blue light filter for computer screen download
Do you want to set it once and forget it, or do you want manual control? blue light filter for computer screen download
If you find automatic filters annoying, SunsetScreen gives you manual control over exactly when the sun "sets" on your monitor. Very small file size and low CPU usage. blue light filter for computer screen download