Software Pick: f.lux


Automatic Brightness Control

f.lux fixes the problem of getting blinded by your computer screen: it makes the colour of your computer's display adapt to the time of day, warm at night and like sunlight during the day. f.lux makes your computer screen look like the room you're in, all the time. When the sun sets, it makes your computer look like your indoor lights. In the morning, it makes things look like sunlight again.


  • f.lux can go warmer than 3400K now, down to 2700K. Or even 1200K if you really want it to.
  • Support for colour profiles from a hardware calibrator
  • Movie mode. This setting warms up your display, but it preserves shadow detail, skintones, and sky colours better than f.lux’s typical colours. It lasts two and half hours, which lets you watch most feature films
  • Disable until morning, for late-night crunch mode
  • A new “darkroom” mode, which inverts colours and gets very red
  • A map to help you find your location
  • Hotkeys to dim your display (Alt-PgDn, Alt-PgUp) late at night, so desktop users can dim too
  • A hotkey to disable/enable f.lux quickly: Alt-End
  • If you have a laptop, f.lux gets warmer when your backlight dims, like an incandescent lamp
  • A simple schedule for Philips Hue, so you can f.lux your house