Dimmer - A very small and free utility for Windows to reduce brightness on LCD/TFT screens.
Calise - Calise is an open-source Camera Light Sensor developed using the python language to determine ambient brightness and configure the right brightness for the screen by using a camera.
GridMove - GridMove - A window management tool that can quickly arrange your windows into desktop grids.
CareUEyes - CareUEyes is an eye protection software for windows that comes with blue light filter, screen dimmer, and break reminder
Preme for Windows - Speeds up your window switching.
Red Moon - Screen filter for night time phone use.