AFileFix Document Comparison is a free web tool for comparing two versions of a document. It accepts PDF and DOCX files, including a pair with one file of each type, with a limit of 25 MB per file. The tool identifies added, removed, and modified content. Results appear on screen, and a downloadable DOCX report presents the analysis with plain-English notes on what changed and why it may matter. It is aimed at structured, text-heavy material such as contracts, policies, proposals, terms of service, and manuals. A comparison sends both files to Anthropic's Claude API; AFileFix says it removes them from its server within minutes. The page says Anthropic retains API data for up to 30 days for safety review before deleting it, and does not use it to train AI models. The tool examines text, not presentation: it does not detect layout-only changes. Scanned and password-protected PDFs are unsupported, documents over approximately 150 pages may be truncated, and each run handles one document pair.
Who it is for
It suits readers comparing text-heavy PDFs or DOCX files, especially contracts, policies, proposals, terms of service, and manuals. It is less suited to checking page layout or producing legal redlines.
What is good
- Free plan with no signup.
- Accepts PDF and DOCX, including mixed pairs.
- Shows changes with plain-English explanations.
- Provides a downloadable DOCX report.
What to know first
- Scanned and password-protected PDFs are unsupported.
- Documents over approximately 150 pages may be truncated.
- Layout-only changes are not detected.
- No three-way comparison or legal redline output.
Verdict
AFileFix offers a straightforward way to compare one pair of text-heavy documents and review explained changes. Check its file restrictions and text-only scope if you need to compare scans, long documents, or formatting.
AFileFix Document Comparison plans and pricing
All plansCompared on document comparison software
- Free plan
- Yes
- PDF comparison
- Yes
- Office file comparison
- Yes
- Formatting changes
- No
- Redline output
- No
- Deployment
- web
