AlternativeTo Logo

Open Source f.lux Alternatives

The best open source alternative to f.lux is Redshift. If that doesn't suit you, our users have ranked more than 25 alternatives to f.lux and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to f.lux are LightBulb, RedshiftGUI, Red Moon and Gammy.

f.lux alternatives are mainly Color Temperature Tools but may also be Screen Dimmers or Health Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of f.lux.
This page was last updated
f.lux iconf.lux
  919
  • FreeProprietary
  • Mac
  • Windows
  • Linux
  • Android
  • iPhone
  • Android Tablet
  • iPad

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

Learn more about f.lux

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

    Screenshot
    Redshift vs f.lux opinions
    Almost everyone thinks Redshift is a great alternative to f.lux.
     all • positive • negative      relevance • date

    It adjusts colours the way I expected it to. There is a simple and efficient gui applet (redshift-gtk) available, and it supports interesting commandline options

    Top positive comment   ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    2

    Open source with more features

    Top positive comment   ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    1

    It doesnt't work sometimes...

    Top negative comment   ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    0

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

    Negative comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    -12

    To start the program, just type "redshift" in a terminal.

    Positive comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    1

    It is open source thus it works better and can be trusted more

    Positive comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    1

    In most repos. Easy to use auto adjusts to the sun.

    Positive comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    2
    Show more comments
    7 of 9 comments
  2. LightBulb is an application that reduces eye strain produced by staring at a computer screen when working late hours. As the day goes on, it continuously adjusts gamma, transitioning the display color temperature from cold blue in the afternoon to warm yellow during the night.

    Screenshot
    LightBulb vs f.lux opinions
    Almost everyone thinks LightBulb is a great alternative to f.lux.
     all • positive • negative      relevance • date
    CaptaPraelium

    Superior performance. Detailed explanation by the author here: https://www.reddit.com/r/osugame/comments/5rpq1q/lightbulb_gamingfriendly_flux_alternative/

    Top positive comment   ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    8

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

    Top positive comment   ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    1

    Open source, far more options, faster

    Positive comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    2

    Simplest, fastest, best user license agreement.

    Positive comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    1

    This one is the BEST for Windows as Redshift is the best for Linux

    Positive comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    3

    Same features, Much Better performance (Key when playing Games or performing intensive tasks), with additional options for customization, like Hotkeys, and disabling it when using a full-screen application.

    Positive comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    1
    • Free & open source
    • Adds the feature of setting your own sunset and sunrise times, which the f.lux developer(s) did not want to add
    • Access to the keyboard/mouse logging hook MSCTF.dll can be declined without affecting functionality except for the ability to configure quick-keys
    • Occasionally crashes when denied a permission by comodo HIPS, but nothing so regular that it gets in the way of use.
    Positive comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    3
    Show more comments
    7 of 10 comments


  3. RedshiftGUI icon

    RedshiftGUI

    • FreeOpen Source
    • Windows
    • Linux

    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.

    Discontinued

    The project seems to be no longer developed. Last version, 0.2.4, released in August 2014, can be still downloaded from GitHub.

    Main dailog
    RedshiftGUI vs f.lux opinions
    Most users think RedshiftGUI is a great alternative to f.lux.

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

    Positive comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.

    1
  4. The app is free on F-Droid and on GitHub but you can buy it on the Google Play Store to support the developer.

    Screenshot
    Most users think Red Moon is a great alternative to f.lux.
  5. Adaptive screen brightness and temperature for Windows and Linux.

    Discontinued

    The project is no longer being worked on and the repository has been archived

    Screenshot


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

    Screenshot
  7. Desktop Dimmer icon

    Desktop Dimmer

    • FreeOpen Source
    • Mac
    • Windows
    • Linux

    Enable darker-than-dark dimming for internal and external screens.

    Discontinued

    The last commit to the project is from November, 16 2017 and it gave some users a bunch of deprecation errors when they tried to install and run it.

    Desktop Dimmer For Windows
  8. Win10_BrightnessSlider icon

    Win10_BrightnessSlider

    • FreeOpen Source
    • Windows

    this app puts a Monitor Brightness icon to on Taskbar Tray. So you can access it with 1 click.

    Screenshot
  9. QRedshift icon

    QRedshift

    • FreeOpen Source
    • Linux
    • Cinnamon

    A Cinnamon applet that sets brightness, gamma levels and color temperature with Redshift.

    Screenshot
  10. Kumux

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Chrome OS
    • Software as a Service (SaaS)

    Kumux is a dynamic circadian color scheme for code editors and other software. It adjust color temperature, color hues, contrast and brightness levels throughout the day based on the position of the sun.

    Screenshot
Showing 10 of 23 alternatives