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Compare HTML files online

Compare HTML templates, landing pages, email templates, or CMS output. Tag and attribute changes are highlighted clearly with colour-coded diff. Runs entirely in your browser — nothing is uploaded to any server.

L: 0 lines  |  R: 0 lines Paste or upload HTML files, then click Compare
Original
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Modified
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Compare HTML files online — fast, free, and private

Use TextFileCompare.com to compare HTML files directly in your browser. Compare HTML templates, landing pages, email templates, or CMS output. Tag and attribute changes are highlighted clearly with colour-coded diff. No account required, no data uploaded — your code never leaves your device.

Common use cases

Template version comparison

Email HTML QA review

CMS-generated vs hand-coded HTML

Accessibility audit before/after

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