Text Diff Checker

A diff checker compares two blocks of text and highlights the differences line by line — additions, deletions, and modifications. It works like git diff but for any text: code, configuration files, JSON responses, database records, or document revisions.

Common uses include comparing API responses before and after changes, reviewing config file modifications, checking translation differences, and verifying data migration output. This tool runs entirely in your browser — your text is never sent to any server.