f.lux Alternatives

    The most popular 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 so hopefully you can find a suitable replacement. Other interesting f.lux alternatives are LightBulb (Free, Open Source), SunsetScreen (Paid), RedshiftGUI (Free, Open Source) and Twilight (Free).

    The list of alternatives was last updated on Sep 11, 2020

    • Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.
      Almost everyone think this is great alternative to f.lux.
      • Free • Open Source
      • Windows
      • Linux
      • BSD
      da
      This is open source, while f.lux wants you to download a binary and run it constantly on your system.
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      Positive comment • more than a year ago

      Gu
      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
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      Positive comment • more than a year ago

      Gu
      In most repos. Easy to use auto adjusts to the sun.
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      Positive comment • more than a year ago

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    • Background application that adjusts screen gamma, making the colors appear warmer at night, reducing strain on your eyes.
      Almost everyone think this is great alternative to f.lux.
      • Free • Open Source
      • Windows
      Ca
      Superior performance. Detailed explanation by the author here: https://www.reddit.com/r/osugame/comments/5rpq1q/lightbulb_gamingfriendly_flux_alternative/
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      Positive comment • more than a year ago

      Gu
      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.
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      Positive comment • more than a year ago

      Gu
      + 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.
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      Positive comment • more than a year ago

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      3 of 10


    • 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.
      Almost everyone think this is great alternative to f.lux.
      • Windows
      Gu
      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.
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      Positive comment • more than a year ago

      bk
      Can set also brightness level to change automatically. Can set the time to change to night time yourself.
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      Positive comment • more than a year ago

      Gu
      Just used it for a couple of minutes. But it really seems to do exactly what I need! Lets you choose the time, not like F.lux
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      Positive comment • more than a year ago

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    • RedshiftGUI changes the color temperature of your monitor to better match that of your surrounding.
      Most users think this is great alternative to f.lux.

      Discontinued

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

      • Free • Open Source
      • Windows
      • Linux
      Gu
      it is much easier to install and just works right away!
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      Positive comment • more than a year ago

    • The app filters the blue spectrum on your phone or tablet after sunset and protects your eyes with a red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.
      Most users think this is great alternative to f.lux.
    • The app is free on F-Droid and on GitHub but you can buy it on the Google Play Store to support the developer.
      Most users think this is great alternative to f.lux.
    • Iris mini is free cross-platform blue light reduction and PWM flicker free brightness software.
      Most users think this is great alternative to f.lux.
      • Freemium
      • Mac
      • Windows
      • Linux
      Gu
      Very minimalistic and lightweight. Doesn't affect games (i.e. microstuttering) the way f.lux does (if you set it to Paused mode).
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      Positive comment • more than a year ago

    • 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.
      Most users think this is great alternative to f.lux.
      • Freemium
      • Mac
      • Windows
      • Linux
      Gu
      Iris has all the functionality of f.lux and much more
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      Positive comment • more than a year ago

      Gu
      Intuitive to use and easy to install
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      Positive comment • more than a year ago

    • Screens emit blue light, which can keep you up at night. Night light displays warmer colors to help you sleep.