f. lux: software to make your life better Is your computer keeping you up late? f lux is a free download that warms up your computer display at night, to match your indoor lighting
Welcome to f. lux Welcome to f lux To install, run flux-setup exe when your download is complete What to do first Set your location f lux works a lot better if it knows when the sun rises and sets The sun is the brightest light we see every day, so setting this up matters a lot for understanding your circadian timing Choose your usual wake time
f. lux: F. A. Q. Click the zip file to expand it Double click the "Flux" application in your Finder window Enter your location, set your wake time, and select the type of lighting in your room at night Mac Uninstall Go to the f lux Settings panel (to the left of your system clock) Choose "Quit f lux" In Finder, select and delete the f lux app, and empty the
Welcome to f. lux for macOS Choose "Quit f lux" In Finder, search for "Flux" and select and delete the f lux app by dragging it to the trash Uninstalled but can’t delete files Open Activity Monitor and select Flux Choose Force Quit Delete f lux app by dragging it to the trash Quit f lux but the color still remains Rebooting often fixes any problems with color tint
Whats new with f. lux beta version 4 140 (Oct 2025) Workarounds for Qualcomm Snapdragon (Adreno GPU) support for external monitors Fixes for numerous “app quit while dialog box is up” crashes Progress on per-monitor calibrations (slow going because in some cases we have to use the same transform everywhere) Fixes for remote desktop Testing new monitor colorspace code for stability, but not fully active yet
Welcome to f. lux v4 Old new stuff (2013) f lux can go warmer than 3400K now, down to 2700K Or even 1200K if you really want it to Support for color profiles from a hardware calibrator Movie mode This setting warms up your display, but it preserves shadow detail, skintones, and sky colors better than f lux’s typical colors It lasts 2½ hours, which lets you watch most feature films Disable until morning, for
Home (f. lux forum) Light, Sleep, and f lux support @ForwardVision thanks we haven't been tracking this closely from version to version, but we're grateful they're doing it Is it when you switch desktops or just any window?
f. lux for Linux - justgetflux F lux for Linux We're happy to announce a proper Linux f lux GUI, along with a ton of bugfixes to the command-line app PPA install instructions are on the github page Here's how it looks! xflux daemon (command line, but for X-Windows) September 2013 A 64-bit version with multiple monitor support is available here: xflux64 tgz A 32-bit build with support for multiple monitors is available
f. lux your lights Circadian lighting with f lux You already know that the light from screens can affect your sleep Don’t overlook the rest of the lights in your house By dimming and shutting off lights in your home, you can create an environment that’s more friendly to sleep You don’t need to buy any special gear just to flip a switch at night, but if you are looking for a gradual, automatic change
f. lux has been updated to a new version It’s been a few years since f lux for Windows got an update, but this new version is finally out of beta We have a ton of new features and bugfixes to tell you about, and we hope you enjoy trying them out in the new version Big new cool stuff f lux can go warmer than 3400K now, down to 2700K Or even 1200K if you really want it to Support for color profiles from a hardware calibrator