Compare Two PDFs — Find Differences Free & Private
Upload two PDF versions and see exactly what text was added, removed, or unchanged. All comparison is done locally — no uploads ever.
Compare PDF Versions
Text diff · added/removed · 100% local
Upload Two PDFs to Compare
Both files processed entirely in your browser — never uploaded.
Frequently Asked Questions
How does comparison work?
Text extracted from both PDFs, then compared line-by-line using the Myers diff algorithm.
Is it free?
Yes, completely free. No account, no limits.
Are my PDFs secure?
100% secure — both files processed entirely in your browser, no uploads ever.
Works on large PDFs?
Yes. Large PDFs may take a few seconds but there are no size limits.
Does it compare images?
No — text-based only. Image-only scanned PDFs will show no diff. Use OCR first.
Do I need an account?
No account required. Compare PDFs immediately with no registration.
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