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🎬 Browser extension that allows adjusting temperature and other properties of videos on Chrome, Opera and Firefox.
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Latest commit d7b6fc1 Jul 7, 2018

Night Video Tuner

Protect your eyes and improve your sleeping cycles by adjusting video temperature and many other properties!

A few examples of the extension being used!

Features at a glance

  • Use on all HTML5 video players: Youtube, Netflix, BBC iPlayer, Vimeo and more!
  • Adjust video temperature to filter out blue light before sleep, which can distort your circadian rhythm according to recent research.
  • Control 9 other filters to reduce eye strain and enjoy a better night viewing experience: brightness, contrast, grayscale, invert, opacity, saturate, sepia, blur and hue.
  • Not only useful in night mode: tune video settings the other way around for bright environments.
  • Improve the visual quality of videos and enjoy more vibrant images at all times.
  • Enable, disable and precisely manage filters on the fly.
  • Lightweight and user-friendly interface.
  • Free, no user tracking, no ads.
  • Available in English and French.
  • Source code fully available.

Check out what's new in the latest releases!

Getting started

💿 Extension installation

Simply navigate to the Chrome Chrome Web Store if you are using Chrome, to the Opera Opera Add-Ons Store if you are using Opera or to the Firefox Firefox Add-Ons Store if you are using Firefox.

Click on the install button on the top right of the window. The extension will be installed automatically and should not require a browser restart in order to be used.

🔨 Running the tests

If you're a developer, you may be interested in running the tests. Simply clone the respository and open tests/SpecRunner.html in your favorite browser! A full report will be generated using Jasmine.


$ code

Want to make Night Video Tuner better, faster, stronger? Contributions are more than welcome, open a pull request and share your code! Simply fork the repository by clicking on the icon on the top right of this page and you're ready to go!

💬 Support

Thought of a cool idea? Found a problem or need some help? Simply open an issue!

⭐️ Thanks

Find the project useful, fun or interesting? Star the repository by clicking on the icon on the top right of this page!


GNU General Public License v3.0

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