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

f.lux is described as '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' and is a leading color temperature tool in the system & hardware category. There are more than 50 alternatives to f.lux for a variety of platforms, including Windows, Linux, Mac, Android and Wayland apps. The best f.lux alternative is Redshift, which is both free and Open Source. Other great apps like f.lux are LightBulb, SunsetScreen, RedshiftGUI and Twilight.

filter to find the best alternatives

f.lux alternatives are mainly Color Temperature Tools, but if you're looking for Screen Dimmers or Health Tools you can filter on that. Other popular filters include Linux, Android, Mac, Windows and Screen Dimmer. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to f.lux.
More about f.lux
Copy a direct link to this comment to your clipboard
f.lux alternatives page was last updated

Alternatives list

  1. Redshift icon

    Redshift

     259 likes
    Copy a direct link to this comment to your clipboard

    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

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    Redshift screenshot 1
     
    |
    9
    171
    Comments about Redshift as an Alternative to f.lux
    Top Positive Comment
    danhaiduc
    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
    0

    It doesnt't work sometimes...

    Review by a new / low-activity user.
    Guest
    Negative
    -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
    f.lux Icon
    Redshift icon

    • Most users think Redshift is a great f.lux alternative.

    • Redshift is the most popular Windows, Mac & Linux alternative to f.lux.

    • Redshift is the most popular Open Source & free alternative to f.lux.

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

    LightBulb

     108 likes
    Copy a direct link to this comment to your clipboard

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

    54 LightBulb alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Windows
    LightBulb screenshot 1
     
    |
    11
    66
    Comments about LightBulb as an Alternative to f.lux
    Comment summary: LightBulb is praised for being user-friendly, open-source, and highly configurable, offering customizable schedules and minimal performance impact, making it ideal for gamers. It provides similar features to f.lux but with additional customization options like hotkeys and the ability to disable effects during full-screen applications. Users highlight its stability, lightweight nature, and superior performance, especially on Windows, as a better alternative to f.lux.
    Top Positive Comment
    Mark
    0

    user-friendly interface and easily configurable

    Guest
    Positive
    2

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

    Review by a new / low-activity user.
    Guest
    Positive
    2

    Open source, far more options, faster

    Review by a new / low-activity user.
    Show more comments
    3 of 11 comments
    f.lux Icon
    LightBulb icon

    • Almost everyone thinks LightBulb is a great f.lux alternative.

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

    SunsetScreen

     35 likes
    Copy a direct link to this comment to your clipboard

    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.

    Cost / License

    • Pay once
    • Proprietary

    Application type

    Platforms

    • Windows
    Main Window
     
    |
    9
    56
    Comments about SunsetScreen as an Alternative to f.lux
    Top Positive Comment
    Bruno Klampfl
    5

    Can set also brightness level to change automatically. Can set the time to change to night time yourself.

    Guest
    Positive
    -1

    Much better transitions and less laggy

    Review by a new / low-activity user.
    Guest
    Positive
    0

    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.

    Review by a new / low-activity user.
    Show more comments
    3 of 9 comments
    f.lux Icon
    SunsetScreen icon

    • Most users think SunsetScreen is a great f.lux alternative.

    • SunsetScreen is the most popular commercial alternative to f.lux.

    • SunsetScreen is Paid and Proprietaryf.lux is Free and Proprietary
    • SunsetScreen is Customizablef.lux is not according to our users
  5. Ad
    Screenshot
    Iris mini icon
    Iris mini

    Enjoy free cross-platform blue light reduction and PWM flicker-free brightness control with Iris mini. Minimalistic design, portable, and automatic for no-hassle, eyestrain-relief across all devices. Simply double-click to activa...

    https://iristech.co
    Learn More
  6. RedshiftGUI icon

    RedshiftGUI

     92 likes
    Copy a direct link to this comment to your clipboard

    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.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Windows
    • Linux
    Main dailog
     
    |
    1
    36
    Comments about RedshiftGUI as an Alternative to f.lux
    Guest
    Positive
    1

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

    Review by a new / low-activity user.
    f.lux Icon
    RedshiftGUI icon

    • Most users think RedshiftGUI is a great f.lux alternative.

    • RedshiftGUI is Free and Open Sourcef.lux is Free and Proprietary
  7. Twilight icon

    Twilight

     56 likes
    Copy a direct link to this comment to your clipboard

    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.

    43 Twilight alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Android
    Twilight screenshot 1
    Twilight screenshot 2
    Twilight screenshot 3
     
    |
    36

    • Most users think Twilight is a great f.lux alternative.

    • Twilight is the most popular Android alternative to f.lux.

    • Twilight is Free and Proprietaryf.lux is also Free and Proprietary
  8. Red Moon icon

    Red Moon

     53 likes
    Copy a direct link to this comment to your clipboard

    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

    Application types

    Platforms

    • Android
    • F-Droid
    Red Moon screenshot 1
    Red Moon screenshot 2
    Red Moon screenshot 3
     
    |
    1
    20
    Comments about Red Moon as an Alternative to f.lux
    arsCynic ??
    Positive
    1

    Straightforward. Fast. No ads. No trackers.

    f.lux Icon
    Red Moon icon

    • Almost everyone thinks Red Moon is a great f.lux alternative.

    • Red Moon is Free and Open Sourcef.lux is Free and Proprietary
  10. Iris mini icon

    Iris mini

     19 likes
    Copy a direct link to this comment to your clipboard

    Enjoy free cross-platform blue light reduction and PWM flicker-free brightness control with Iris mini. Minimalistic design, portable, and automatic for no-hassle, eyestrain-relief across all devices. Simply double-click to activate, perfect for every lighting condition.

    52 Iris mini alternatives

    Cost / License

    • Freemium (Pay once)
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Iris mini screenshot 1
     
    |
    1
    23
    Comments about Iris mini as an Alternative to f.lux
    Guest
    Positive
    -2

    Very minimalistic and lightweight. Doesn't affect games (i.e. microstuttering) the way f.lux does (if you set it to Paused mode).

    Review by a new / low-activity user.
    f.lux Icon
    Iris mini icon

    • Most users think Iris mini is a great f.lux alternative.

    • Iris mini is Freemium and Proprietaryf.lux is Free and Proprietary
  11. Iris icon

    Iris

     32 likes
    Copy a direct link to this comment to your clipboard

    Reduces blue light and flicker for eye comfort, supports auto color temperature adjustment based on time, customizable modes, overlays, color and font options, docking station support, and accessible part-screen filtering for diverse needs.

    145 Iris alternatives

    Cost / License

    • Freemium (Pay once or Subscription)
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    Iris screenshot 1
     
    |
    2
    14
    Comments about Iris as an Alternative to f.lux
    Guest
    Positive
    2

    Iris has all the functionality of f.lux and much more

    Review by a new / low-activity user.
    Guest
    Positive
    1

    Intuitive to use and easy to install

    Review by a new / low-activity user.
    f.lux Icon
    Iris icon

    • Most users think Iris is a great f.lux alternative.

    • Iris is Freemium and Proprietaryf.lux is Free and Proprietary
  12. Redshift Tray icon

    Redshift Tray

     6 likes
    Copy a direct link to this comment to your clipboard

    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

    Application types

    Platforms

    • Windows
    Tooltip
     

  14. gammastep

     2 likes
    Copy a direct link to this comment to your clipboard

    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

    Platforms

    • Linux
    • Wayland
     
12 of 59 f.lux alternatives