DiffMerge

DiffMerge provides a graphical interface for comparing the contents of two files side‑by‑side, highlighting differences and allowing users to resolve them interactively. The tool displays changes line by line, making it easy to identify additions, deletions, and modifications, and offers controls to accept or reject each change directly within the visual view. It supports merging the selected differences into a single output file, streamlining the process of reconciling divergent versions.

The application is built for macOS, integrating with the native environment to deliver a responsive experience that leverages the operating system’s windowing and file‑handling capabilities. Its design focuses on straightforward navigation and clear visual cues, reducing the cognitive load associated with manual text comparison. Users can open files from the filesystem, navigate through differences using keyboard shortcuts or mouse actions, and save the merged result with a single command.

Targeted at developers, writers, and anyone who needs to reconcile text files, DiffMerge aims to simplify the workflow of reviewing and combining changes. Its stable release status indicates that core functionality has been tested and is ready for regular use without experimental features.