Submodule Diff Viewer helps visualize changes in commits and pull request diff for repositories with submodules.

While working with git submodules, there's a common problem with viewing changes made to the submodule in the Diff tab. It shows two commit hashes instead of showing the changes in the code. It's especially inconvenient when it comes to reviewing pull requests.

Submodule Diff Viewer add-on helps watch changes committed to submodule in a standard Bitbucket view with the ability to leave comments for more convenient pull requests review.