Free Online Text Diff Tool
Paste two pieces of text and instantly see the differences highlighted side by side. Perfect for comparing code revisions, document drafts, and configuration files.
Spot Every Change Instantly
Whether you are reviewing a pull request, proofreading a document, or debugging a configuration file, the text diff tool highlights exactly what changed between two versions. No more squinting at two windows trying to find the one character that is different.
Built for Speed and Privacy
All comparisons happen directly in your browser. Your text is never sent to a server, so you can safely compare sensitive code, contracts, or private notes without any privacy concerns.
Frequently Asked Questions
The tool compares two blocks of text line by line and character by character. Additions are highlighted in green, deletions in red, and unchanged lines remain neutral, giving you a clear visual of every difference.
Yes. The diff tool works with any plain text, including source code in any programming language. It preserves whitespace and indentation so you can spot even subtle changes.