GitHub Tree is a free Chrome add-on developed by MarshallOfSound. As the name suggests, it provides a tree view of files in GitHub pull requests. This add-on is a useful tool for developers who want a visual representation of the files within a pull request.

With GitHub Tree, users can easily navigate through the file structure of a pull request, making it easier to understand the changes made and review the code. The tree view displays the files in a hierarchical structure, allowing users to expand and collapse folders to explore the files within.

This add-on is particularly helpful for larger pull requests with numerous files and folders. It provides a clear overview of the file structure, making it easier to locate specific files and understand their relationships within the pull request.

Overall, GitHub Tree is a valuable add-on for developers using GitHub. It simplifies the process of reviewing pull requests by providing a visual representation of the file structure, enhancing efficiency and productivity.