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Open Source Windows Night Light Alternatives

The best open source alternative to Windows Night Light is Redshift. If that doesn't suit you, our users have ranked more than 25 alternatives to Windows Night Light and 17 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Windows Night Light are LightBulb, Red Moon, Gammy and RedshiftGUI.

Windows Night Light 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 Windows Night Light.
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To schedule Night Light so it turns on automatically, select Start > Settings > System > Display > Night...

Learn more about Windows Night Light

  1. Brisync icon


    • FreeOpen Source
    • Mac
    51 alternatives to Brisync 

    Synchronize your external monitor brightness with built-in display. Application reads current brightness of your built-in display and passes it to external monitors via DDC interface. You can adjust brightness by menu in system status bar.

     Brisync has no features, suggest some!
  2. Shady icon


    • FreeOpen Source
    • Mac
    46 alternatives to Shady 

    Shady puts a shade over your screen to help soothe your tired or dazzled eyes. You can use it to reduce your Mac's brightness far below the usual minimum, without any risk of damage to your screen.

     Shady has no features, suggest some!

  3. FireLux icon


    • Online
    • Firefox
    42 alternatives to FireLux 

    This add-on allows to apply a filter in the web pages in order to attenuate the blue light.

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    1.  Dark ModeFireLux supports dark mode for comfortable usage in low light conditions.
    • Nocturne icon


      • FreeOpen Source
      • Mac
      46 alternatives to Nocturne 

      Nocturne is simple app for switching a computer to night vision mode. It has a few tricks up its sleeve: color correction, window shadow toggling, and background removal.

       Suggest and vote on features

      The project has been abandoned. Last version, 2.0.0, released in September 2009, can be still downloaded from Google Code Hosting

    • Calise icon


      38 alternatives to Calise 

      A programs which adjust screen brightness due to light detectedby webcam.

       Calise has no features, suggest some!

    • Lumen icon


      39 alternatives to Lumen 

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

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    • SCT - Set Color Temperature

      45 alternatives to SCT - Set Color Temperature 

      Setting the color temp of the screen really only requires about 40 lines of C (80 or so all inclusive). sct is a crude utility which does roughly that. I’d say exactly that, but some of the calculations aren’t actually exact.

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    Showing 17 of 17 alternatives