F.lux

f.lux
Original author(s)Michael Herf, Lorna Herf
Developer(s)F.lux Software LLC
Initial releaseFebruary 2009 (2009-02)
Stable release
Windows: v4.137
macOS: 41.5
iOS: 0.9986
Operating systemWindows, macOS, Linux, Android, iOS
Available inEnglish
LicenseFreeware
Websitejustgetflux.com

f.lux (pronounced "flux") is a cross-platform computer program that adjusts a display's color temperature according to location and time of day, offering functional respite for the eyes. The program is designed to reduce eye strain during night-time use, helping to reduce disruption of sleep patterns.