Open Source Windows Night Light Alternatives

    The best open source alternative to Windows Night Light is Redshift, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Windows Night Light and 15 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Windows Night Light are LightBulb (Free, Open Source), Red Moon (Free, Open Source), RedshiftGUI (Free, Open Source) and Gammy (Free, Open Source).

    This page was last updated Nov 12, 2020

    1. Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.
    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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    3. The app is free on F-Droid and on GitHub but you can buy it on the Google Play Store to support the developer. Red Moon is a screen filter app for night time phone use.
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      • 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.

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    4. 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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    5. NegativeScreen is a Windows application allowing you to invert your screen colors. Apart from accessibility matters, this software is especially useful when you are surfing on the internet in a dark room, and the screen is dazzling you.
    6. Shifty was made to expand the capabilities of the built in Night Shift feature in macOS. You can disable Night Shift for specific apps and custom time periods. It also provides easy access to a slider to fine tune your color temperature.
      • FreeOpen Source
      • Mac
      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.
      • FreeOpen Source
      • Mac
      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.
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    Showing 10 of 15 alternatives