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f.lux

Software that makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day.

  • Mac
  • Windows
  • Linux
  • Android
  • iPhone
  • Android Tablet
  • iPad
Avg rating of 4.1 (27)| 37 comments

f.lux Screenshots

Main Window
Color Presets
Color Effects
Color Changing
Disabe Option
Color Adjustment
Settings
Location Selection

f.lux information

  • Developed byf.lux Software LLC
  • LicensingProprietary and Free product.
  • RatingAverage rating of 4.1 (27 ratings)
  • Alternatives53 alternatives listed

Supported Languages

  • English

Our users have written 37 comments and reviews about f.lux, and it has gotten 925 likes

f.lux was added to AlternativeTo by nironan12 on and this page was last updated . f.lux is sometimes referred to as Flux.

Comments and Reviews  Post a comment/review

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cryoff
  
Top positive comment ago
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Just an amazing tool for your eyes' health

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1
rogerpeartree
  
Top positive comment ago
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f.lux is easy to install, both on Windows and Linux, tracks the Sun position depending on your location on Earth and so behaves very naturally, during day and night, reducing blue light when the sun is going down and setting normal brightness in the morning, thus preventing you from suffering from insomnia due to excess of blue light at night and preventing eye strain at any time. The Windows Beta version is more advanced and it even asks you what's your wake-up hour and has a circadian cycle graph with comments and percentages when you mouse over. Also allows you to choose your preferred light temperature or you can use the recommended one which is constantly changing depending on the moment of the day/night (but you won't notice it). More, it has a temporary/permanent disable mode if you need to watch a movie or work with graphics editing apps (in Linux this is the Pause mode). Since I use both Linux and Windows this app is perfect for me. My only complaint is that the Windows version gets lots of updates and the Betas but on Linux the app is stalled since a few years ago, which is really a shame, although it's still very useful.

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1
John_Proctor
  
Top negative comment ago
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This app completely resets Windows calibration settings and the developers aren't willing to fix it even though the issue has been oepnly addressed on their forum multiple times. This makes it completely unusable for me since all my black colors turn to grey and if you're using Windows calibration, you won't be able to use it neither.

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3
urkosh
  
Positive comment ago
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Windows 10 Night Light feature did not provide sufficiently warm color temperature. f.lux also surprised with a non intrusive reminder about my wake-up time.

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0
kfua
  
Positive comment ago
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It works great! It changes the colors of the screen during the day.

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0
michaeldev
  
Positive comment ago
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F.lux or LightBulb gonna protect your eyes at night. ( especially on non-dark themed websites :) ) Pros

  • Light
  • Free
  • Portable

[Edited by michaeldev, September 03]

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0
otakugalih
  
Negative comment ago
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Makes my eyes uncomfortable. Regular screen dimmer feels better for my eyes.

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7 of 37 comments

Tags

  • Screen Dimmer
  • flux
  • monitor-colors
  • sleepless
  • colors
  • eye-strain
  • sleep-cycle
  • sleep
  • sleep-better

f.lux platform details

Mac

OSX PPC need v1.1

Android

preview, root-only

iPhone

Requires jailbreak

Android Tablet

preview, root-only

iPad

Requires jailbreak

Recent user activities on f.lux

  • krishavenkrishaven liked f.lux
    ago
  • f.lux iconRedshift iconzuopak Downvoted a comment on Redshift as an alternative to f.lux
    It's just not as good as f.lux is.
    ago
  • MacKenzieTStoutMacKenzieTStout liked f.lux
    ago
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