Retcon

Retcon is a macOS desktop application that provides a visual interface for rewriting Git history. Instead of using complex command-line instructions, you can drag and drop commits to reorder them, edit commit messages directly, and perform operations like fixups or deletions with simple clicks. The tool shows your changes in real-time and maintains your repository's working state throughout the editing process.

What makes Retcon stand out is its comprehensive undo system. Every action—from creating commits to rebasing branches—can be reversed with a standard ⌘Z shortcut. This eliminates the fear of making mistakes when manipulating Git history. The application also provides clear visual diffing for conflict resolution, showing exactly what changes are happening and offering contextual guidance.

Retcon is particularly valuable for developers who need to maintain clean, communicative Git histories. It helps technical teams prepare code for review, instructors create step-by-step tutorial repositories, and individual developers organize their work more effectively. The built-in sandbox feature lets users experiment safely before applying changes to their actual projects.