Dimmer - A very small and free utility for Windows to reduce brightness on LCD/TFT screens.
Windows Night Light - Turn on the night light setting in Windows 10 to show warmer colors that are easier on your eyes.
CareUEyes - CareUEyes is an eye protection software for windows that comes with blue light filter, screen dimmer, and break reminder
f.lux - f. lux is a piece of software for Windows, Mac, Linux, iOS, and Android that provides a blue light filter over your screen. Research suggests limiting our exposure to blue light in the hours before bedtime can help us fall asleep faster.
myPoint Shade - Stop burning your eyes! myPoint Shade is caring for your eyes' comfort.
PangoBright - Screen dimming software that allows you to control the brightness of your laptop screens as well as external monitors.