The GitHub Ownerless Diff Filter is a free Chrome extension designed to enhance the user experience when reviewing pull requests on GitHub. This tool specifically focuses on filtering files in pull request diffs, allowing users to only display files that do not have assigned code owners. This feature is particularly useful for developers and teams who want to streamline their code review process by concentrating on files that may require additional attention.

By eliminating the clutter of files with designated owners, the extension enables a more efficient review workflow. Users can quickly identify which files are ownerless, facilitating better collaboration and ensuring that all code contributions are adequately reviewed. Overall, this add-on serves as a practical tool for developers looking to optimize their GitHub interactions.