How does this text diff tool work?

This tool uses a Longest Common Subsequence (LCS) algorithm to compute line-by-line differences between two texts, with optional character-level highlighting for changed lines. All processing happens in your browser.

Can I compare HTTP responses with this tool?

Yes. Paste two HTTP responses into the Original and Modified panels to see exactly which headers and body content differ, with line-by-line and character-level highlighting.

Text Diff Tool

Compare text, HTTP responses, or code with line-by-line and character-level diff highlighting. Side-by-side or unified view with options to ignore whitespace, case, and trim lines. All local.

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