Compare two versions of text and see differences highlighted instantly with our free online text diff checker. Perfect for developers reviewing code changes, writers comparing document revisions, or anyone needing to spot differences between text versions. Shows additions, deletions, and unchanged content with clear color coding. All comparison happens locally in your browser for privacy.
Green typically indicates additions (new content), red indicates deletions (removed content), and unchanged text remains neutral.
Yes, the diff checker works with any text including source code, configuration files, and documents.
Processing happens in your browser, so very large texts may be slow. For huge files, desktop diff tools are recommended.