github.expandinizr is a Chrome extension designed to improve the usability of GitHub by enhancing the display of file and directory names within repositories. This extension removes the truncation of these names, allowing for word-wrapping of long titles, which provides a clearer view of the codebase. Additionally, it fully expands the website at various breakpoints, including 1400px, 1600px, 1800px, and 2000px, ensuring a more comfortable browsing experience.

Other notable features include the ability to collapse code previews, a shrink/expand button for comment forms, and support for GitHub Enterprise. Recent updates have introduced support for GitHub's new UI and improved various functionalities, addressing bugs and enhancing the overall user experience. This free tool is particularly beneficial for developers looking to navigate GitHub more efficiently.