Text Diff Comparison is a tool or feature that highlights the differences between two or more versions of a text. It shows what has been added, removed, or changed, making it easy to track revisions and edits. This is useful for programmers reviewing code, writers editing documents, or anyone needing to compare textual changes efficiently. The comparison typically displays differences side-by-side or in inline format, with color coding to indicate insertions, deletions, and modifications.