Protect your eyes and improve your sleeping cycles by adjusting video temperature and many other properties!
A few examples of the extension being used!
- 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 and open-source.
- Available in English, French, Polish, Czech, Chinese, Turkish, Ukrainian, and Russian.
Check out what's new in the latest releases!
Simply navigate to the 
Chrome Web Store if you are using Chrome or to the 
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.
To easily contribute translations, you can use this online editor.
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! To run the tests, open tests/SpecRunner.html in your favorite browser: a full report will be generated using Jasmine.
Something isn't to your taste? Thought of a cool idea? Found a problem or need some help? Simply open an issue!
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