f.lux Alternatives for Windows

    There are many alternatives to f.lux for Windows if you are looking for a replacement. The best Windows alternative is Redshift, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to f.lux and many of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to f.lux are LightBulb (Free, Open Source), SunsetScreen (Paid), RedshiftGUI (Free, Open Source) and Iris mini (Freemium).

    This page was last updated Apr 22, 2021

    1. Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.
      Redshift vs f.lux opinions
      Almost everyone thinks Redshift is a great alternative to f.lux.
       all • positive • negative      relevance • date
      danhaiduc This is open source, while f.lux wants you to download a binary and run it constantly on your system.
      Top positive comment  over 3 years ago

      6
      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  over 4 years ago

      1
      It doesnt't work sometimes...
      Top negative comment  about 4 years ago

      1
      It's just not as good as f.lux is.
      Negative comment over 1 year ago

      -11
      To start the program, just type "redshift" in a terminal.
      Positive comment about 2 years ago

      0
      It is open source thus it works better and can be trusted more
      Positive comment about 3 years ago

      0
      In most repos. Easy to use auto adjusts to the sun.
      Positive comment over 3 years ago

      1
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      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.
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      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  over 4 years ago

      7
      Has minimal performance impact and can be configured to have no impact at all (at the cost of smoothness). Best choice if you are a gamer.
      Top positive comment  over 4 years ago

      4
      Has a customizable schedule instead of 50 meme filters no-one will ever use.
      Positive comment 9 months ago

      0
      Open source, far more options, faster
      Positive comment over 2 years ago

      2
      Simplest, fastest, best user license agreement.
      Positive comment about 3 years ago

      1
      This one is the BEST for Windows as Redshift is the best for Linux
      Positive comment about 3 years ago

      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 over 4 years ago

      1
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      7 of 10 comments


    3. Whether you're a morning lark or night owl, SunsetScreen allows you to set the time of the sunset and sunrise, so you can have full control over your sleep cycle.
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      SunsetScreen vs f.lux opinions
      Almost everyone thinks SunsetScreen is a great alternative to f.lux.
       all • positive • negative      relevance • date
      So happy I can set my own times. In the winter the sunsets happened way to earlier in Flux, then I'd turn it off and forget to turn it back on.
      Top positive comment  almost 5 years ago

      4
      bklampfl Can set also brightness level to change automatically. Can set the time to change to night time yourself.
      Top positive comment  about 5 years ago

      4
      Much better transitions and less laggy
      Positive comment over 3 years ago

      -1
      I can change the settings in this software to activate in 24 hours but I can't active red layer in Flux in 24 hours.
      Positive comment about 4 years ago

      0
      Able to set times, value of filter... More options.
      Positive comment over 4 years ago

      -1
      Redshift is Nerdware - Hard to set up
      Positive comment over 4 years ago

      0
      Has keyboard shortcut to turn it off and the computer doesn't lag while the filter is turned on.
      Positive comment over 4 years ago

      0
      Show more comments
      7 of 9 comments
      • 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.

      show more
      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 over 3 years ago

      0
      • FreemiumProprietary
      • Mac
      • Windows
      • Linux
      Iris mini is free and minimalistic version of Iris. Small. Minimalistic. Free. Portable. Automatic. Awesome for everyone. Just double click and it will work.
      show more
      Iris mini vs f.lux opinions
      Most users think Iris mini is a great alternative to f.lux.
      Very minimalistic and lightweight. Doesn't affect games (i.e. microstuttering) the way f.lux does (if you set it to Paused mode).
      Positive comment over 4 years ago

      -1


    4. Iris is software which makes monitors healthy for the eyes. With iris you can reduce the blue light emitted from your screen for better sleep, reduce the brightness of your screen without PWM and avoid eye pain.
      show more
      Iris vs f.lux opinions
      Most users think Iris is a great alternative to f.lux.
      Iris has all the functionality of f.lux and much more
      Positive comment almost 6 years ago

      2
      Intuitive to use and easy to install
      Positive comment over 5 years ago

      1
    5. Adjust the brightness of all monitors, screens and displays.
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      Dimmer vs f.lux opinions
      This alternative is disputed. Dimmer is still a legitimate alternative to f.lux, but it might have issues that some users think are important.
      Dimmer controls monitor's brightness not color temperature.
      Negative comment over 6 years ago

      0
    6. To schedule Night Light so it turns on automatically, select Start > Settings > System > Display > Night light > Night light settings.
    7. Enables darker-than-dark Desktop dimming for your displays. - Small resource footprint, minimal User Interface. - Settings are persisted and restored per-Display without any configuration.

      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.

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    Showing 10 of 23 alternatives