Text Diff Checker
Compare two blocks of text and highlight additions, deletions, and changes line by line.
Runs entirely in your browser — nothing is uploaded or stored on any server.
About Text Diff Checker
Updated Jan 2025The Text Diff Checker compares two text inputs side by side and highlights every line that was added, removed, or modified. It uses a proven diff algorithm to produce accurate, easy-to-read results. Useful for comparing documents, reviewing code changes, or spotting differences between configuration file versions.