During the day, computer screens look good—they’re designed to look like the sun. But, at 9PM, 10PM, or 3AM, you probably shouldn’t be looking at the sun.
F.lux fixes this: it makes the color of your computer’s display adapt to the time of day, warm at night and like sunlight during the day.
It’s even possible that you’re staying up too late because of your computer. You could use f.lux because it makes you sleep better, or you could just use it just because it makes your computer look better.
My 27″ monitor throws out a lot of light, and F.lux instantly makes it much easier on my eyes. I’m not sure if I’m going to be able to live with it though, as even after 15 minutes, I can still perceive a yellowish hue. It may be because I have two types of fluorescent bulbs in this room, and neither are giving the colour temperature the app expects. A fine-tuning control may help.
For someone who isn’t interested in graphics work of any kind, this free download may be a lifesaver (or at least a life-improver).
Available for Mac, Linux and Windows.