1. Ever notice how people texting at night have that eerie blue glow? Or wake up ready to write down the Next Great Idea, and get blinded by your computer screen?
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  2. Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.


  3. 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.
  4. The app is free on F-Droid and on GitHub but you can buy it on the Google Play Store to support the developer.
  5. 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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  6. 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.
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  7. Iris mini is free and minimalistic version of Iris. Small. Minimalistic. Free. Portable. Automatic. Awesome for everyone. Just double click and it will work.
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  8. To schedule Night Light so it turns on automatically, select Start > Settings > System > Display > Night light > Night light settings.
  9. ? Choose between dark, light, grayscale or colorful color schemes ? Modify existing or create new color schemes ? Use different color schemes on each website ? Adjust brightness, saturation, contrast and hues ? Improve accessibility and readability
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  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.
  11. Sets brightness, gamma levels and color temperature with Redshift on Cinnamon.
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  12. 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.
  13. Free software for eye protection and more! It protects your eyes while you are working on the computer. Eye Saver has three main functions: blue light filter; eliminates the invisible flickering of the display backlight; reminds you to take breaks;.
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  14. 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.