The Best Open Source f.lux AlternativesTop Color Temperature Tools & Screen Dimmers like f.lux

Alternatives list

1. 

   

   Redshift

    258 likes

   Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.

   50 Redshift alternatives

   Cost / License

   • Free
   • Open Source

   Application types

   • Color Temperature
   • Screen Dimmer

   Origin

   • Denmark
   • EU

   Alerts

   • Discontinued

   Platforms

   • Mac
   • Windows
   • Linux
   • BSD

   

   More about Redshift  

   

   Is Redshift a good alternative to f.lux?

    

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   9comments

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   Redshift vs f.lux Comments

    

   Top Positive Comment

   danhaiduc

   Jul 4, 2018

   7

   This is open source, while f.lux wants you to download a binary and run it constantly on your system.

   Top Negative Comment

   Guest

   Oct 7, 2017

   0

   It doesnt't work sometimes...

   Review by a new / low-activity user.

   Guest

   Negative comment•Jan 25, 2020

   -15

   It's just not as good as f.lux is.

   Review by a new / low-activity user.

   Show more comments

   3 of 9 comments

   

   

   • Redshift is Free and Open Sourcef.lux is Free and Proprietary
2. 

   

   LightBulb

    110 likes

   Background application that adjusts screen gamma, making the colors appear warmer at night, reducing strain on your eyes.

   Cost / License

   • Free
   • Open Source (MIT)

   Application types

   • Color Temperature
   • Screen Dimmer

   Origin

   • Ukraine

   Platforms

   • Windows

   

   

   More about LightBulb  

   

   Is LightBulb a good alternative to f.lux?

    

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   11comments

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   LightBulb vs f.lux Comments

    

   Top Positive Comment

   Mark

   Nov 8, 2022

   0

   user-friendly interface and easily configurable

   Guest

   Positive comment•Jan 11, 2021

   2

   Has a customizable schedule instead of 50 meme filters no-one will ever use.

   Review by a new / low-activity user.

   Guest

   Positive comment•Jan 28, 2019

   2

   Open source, far more options, faster

   Review by a new / low-activity user.

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   3 of 11 comments

   

   

   • LightBulb is Free and Open Sourcef.lux is Free and Proprietary
   • LightBulb is Customizablef.lux is not according to our users
4. 

   

   RedshiftGUI

    92 likes

   RedshiftGUI changes the color temperature of your monitor to better match that of your surrounding. This means that it sets a cooler color temperature during the daytime (due to natural lighting) and sets a warmer temperature at night (due to indoor lighting). Similar to f.

   47 RedshiftGUI alternatives

   Cost / License

   • Free
   • Open Source

   Application type

   • Color Temperature

   Origin

   • China

   Alerts

   • Discontinued

   Platforms

   • Windows
   • Linux

   

   

   

   More about RedshiftGUI  

   

   Is RedshiftGUI a good alternative to f.lux?

    

   |

   1comment

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   RedshiftGUI vs f.lux Comments

    

   Guest

   Positive comment•Jan 21, 2018

   1

   it is much easier to install and just works right away!

   Review by a new / low-activity user.

   

   

   • RedshiftGUI is Free and Open Sourcef.lux is Free and Proprietary
5. 

   

   Red Moon

    52 likes

   The app is free on F-Droid and on GitHub but you can buy it on the Google Play Store to support the developer.

   Cost / License

   • Free
   • Open Source (GPL-3.0)

   Application types

   • Color Temperature
   • Screen Dimmer

   Origin

   • International

   Platforms

   • Android
   • F-Droid

   

   

   

   +4

   

   More about Red Moon  

   

   Is Red Moon a good alternative to f.lux?

    

   |

   1comment

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   Red Moon vs f.lux Comments

    

   arsCynic

   Positive comment•Sep 22, 2023

   1

   Straightforward. Fast. No ads. No trackers.

   

   

   • Red Moon is Free and Open Sourcef.lux is Free and Proprietary
6. 

   

   Redshift Tray

    6 likes

   Redshift Tray is a no-frills GUI for the screen temperature adjustment tool Redshift.

   • Control Redshift based on location, custom night/day times, or manually
   • Enable/disable by double-clicking the tray icon
   • Has lots of other features via hotkeys

   Cost / License

   • Free
   • Open Source (GPL-3.0)

   Application types

   • Color Temperature
   • Screen Dimmer

   Platforms

   • Windows

   

   

   

   More about Redshift Tray  

   

   Is Redshift Tray a good alternative to f.lux?

    
7. 

   

   Midnight Lizard

    19 likes

   Midnight Lizard web-extension for Google Chrome™ and Mozilla Firefox™ provides custom color schemes for all websites.

   Cost / License

   • Free
   • Open Source (MIT)

   Application type

   • Dark Mode Enforcer

   Origin

   • Russia

   Alerts

   • Discontinued

   Platforms

   • Microsoft Edge
   • Google Chrome
   • Mozilla Firefox

   

   

   

   +2

   

   More about Midnight Lizard  

   

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9. G

   G

   gammastep

    2 likes

   Adjust the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night.

   Cost / License

   • Free
   • Open Source (GPL-3.0)

   Origin

   • United States

   Platforms

   • Linux
   • Wayland

   G

   

   Is gammastep a good alternative to f.lux?

    
10. 

    

    QRedshift

     8 likes

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

    15 QRedshift alternatives

    Cost / License

    • Free
    • Open Source (Apache-2.0)

    Application type

    • Color Temperature

    Origin

    • Brazil

    Platforms

    • Linux
    • Cinnamon

    

    More about QRedshift  

    

    Is QRedshift a good alternative to f.lux?

     
11. 

    

    Gammy

     24 likes

    Adaptive screen brightness and temperature for Windows and Linux.

    Cost / License

    • Free
    • Open Source (GPL-3.0)

    Application types

    • Color Temperature
    • Screen Dimmer

    Origin

    • International

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Linux

    

    More about Gammy  

    

    Is Gammy a good alternative to f.lux?

     
12. W

    W

    wlsunset

     2 likes

    Day/night gamma adjustments for Wayland compositors supporting wlr-gamma-control

    Cost / License

    • Free
    • Open Source (MIT)

    Origin

    • Denmark
    • EU

    Platforms

    • Linux
    • Wayland

    W

    

    Is wlsunset a good alternative to f.lux?

     
13. B

    B

    Blueshift

     3 likes

    Inspired by Redshift, Blueshift adjusts the colour temperature of your monitor according to brightness outside to reduce eye strain and make it easier to fall asleep when going to bed.

    Cost / License

    • Free
    • Open Source

    Application type

    • Color Temperature

    Alerts

    • Discontinued

    Platforms

    • Linux

    B

    

    Is Blueshift a good alternative to f.lux?

     
14. 

    

    Lumen

     2 likes

    Lumen - magic auto brightness based on screen contents. You control Lumen simply by using your brightness keys - it'll automatically learn your preferences.

    43 Lumen alternatives

    Cost / License

    • Free
    • Open Source (GPL-3.0)

    Application type

    • Screen Dimmer

    Origin

    • United States

    Alerts

    • Discontinued

    Platforms

    • Mac

    

    More about Lumen  

    

    Is Lumen a good alternative to f.lux?