Shift Youtube Optimizer is a free and open-source Chrome extension that aims to hide or reduce the number of videos shown on YouTube. Developed by alexander.foster.mcculloch, this extension is written in vanilla JavaScript, CSS, and HTML, following the Chrome Extension format.

Unlike similar Chrome extensions that only work on the YouTube homepage, Shift Youtube Optimizer works all over the site and does not require mouse scrolling to activate. The developer has put in significant effort to understand how YouTube sets up its front-end, ensuring that this extension seamlessly integrates with the platform.

For those interested in the technical details, the source code for Shift Youtube Optimizer is available on its GitHub page, where users can also contribute to improving the extension or report any bugs. It is worth noting that although currently available only for Chrome, a Firefox extension may be in the works in the near future.

Shift Youtube Optimizer provides a convenient solution for users who prefer a clutter-free YouTube experience, making it easier to focus on the videos that matter most.