GitHub-Diff-Whitespace is a free Chrome add-on developed by jasonkarns that enhances the GitHub diff views by adding a convenient button to toggle whitespace. This tool is particularly useful for developers who work with code on GitHub and need to quickly identify and review changes in whitespace.

With GitHub-Diff-Whitespace, users can easily toggle whitespace in GitHub diffs, similar to the functionality of `git diff --ignore-all-space` command. This means that users can choose to ignore whitespace changes, making it easier to focus on the actual code changes.

The add-on seamlessly integrates into the GitHub interface, providing a simple and intuitive UI button that allows users to toggle whitespace with a single click. This enhances the overall user experience and improves productivity for developers who frequently review code on GitHub.

GitHub-Diff-Whitespace is a valuable tool for anyone who wants to streamline their code review process on GitHub and have better control over whitespace changes. Its straightforward functionality and seamless integration make it a must-have add-on for developers working on GitHub.