Compare HTML Code Differences
Compare two HTML files or snippets and see exactly what changed. Highlights added, removed, and modified tags, attributes, and content. Free HTML diff tool.
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Does the diff checker understand HTML structure or just compare text?
The tool offers both modes. Text mode compares raw characters line by line, while structure-aware mode parses the HTML and compares elements semantically. Structure-aware mode catches cases where tags are reordered but content is unchanged, or where attribute order differs without affecting behavior.