f.lux Alternatives for Windows

Redshift automatically adjusts the color temperature of your screen based on the position of the sun. It aims to reduce eye strain and improve sleep by filtering out blue light during evening hours, making the display warmer and more comfortable to view in ambient light.

Iris is a comprehensive software designed to protect your eyes, improve sleep quality, and boost productivity by intelligently managing screen light and offering health features.

Dimmer is a free, portable Windows utility designed to provide advanced control over display brightness. It allows users to dim their screens beyond the limits of standard hardware controls, offering features like color temperature adjustment and scheduling for enhanced eye comfort and usability, particularly in low-light environments.