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AFileFix Document Comparison
What it is
AFileFix Document Comparison is a free web tool for comparing two document versions and identifying added, removed, or modified content. It accepts PDF and DOCX files, including mixed-format pairs, with a limit of 25 MB per file. Results appear on screen, and a downloadable DOCX report presents the analysis with plain-English explanations of each change and why it may matter. The tool is recommended for structured, text-heavy documents such as contracts, policies, proposals, terms of service, and manuals. Each comparison sends both files to Anthropic's Claude API. AFileFix says it deletes uploaded files from its server within minutes after processing. Anthropic retains API data for up to 30 days for safety review, then deletes it, and says it does not use that data to train AI models. The tool focuses on text rather than visual presentation, and each run compares one pair of files. Scanned and password-protected PDFs are unsupported, and documents over approximately 150 pages may be truncated.
For and against
For
- Free web access with no signup listed
- Accepts PDF and DOCX, including mixed pairs
- Downloadable DOCX report explains each change
- Files may be up to 25 MB each
Against
- Scanned and password-protected PDFs are unsupported
- Scanned files are not processed with OCR
- Long documents may be truncated
- No layout comparison or legal redline output
The verdict
AFileFix summarizes textual differences and explains them in a downloadable report, with support for both PDF and DOCX pairs. Before uploading, consider its file-processing details and its limits on scans, long documents, layout changes, and comparison scope.
Who it suits
AFileFix may suit people comparing text-heavy PDF or DOCX documents, such as contracts, policies, proposals, terms, and manuals. It is less suited to readers who need layout comparison or a legal redline.
Plans and prices
Free
Free; no signup · PDF or DOCX, up to 25 MB per file · documents over approximately 150 pages may be truncated
Read 4 Oct 2026 · afilefix.com
On the record
- AI data retention
- The page says Anthropic retains API data for up to 30 days for safety review, then permanently deletes it, and does not use it to train AI models.afilefix.com · read 4 Oct 2026
- AI processing
- The comparison sends both files to Anthropic's Claude API, and AFileFix says it deletes them from its server within minutes after processing.afilefix.com · read 4 Oct 2026
- Best suited to
- The page recommends structured, text-heavy documents such as contracts, policies, proposals, terms of service, and manuals.afilefix.com · read 4 Oct 2026
- Change explanations
- Each change includes a plain-English explanation that describes what changed and why it might matter.afilefix.com · read 4 Oct 2026
- Comparison scope
- Each run compares one pair of documents; it does not provide automatic three-way comparison, Word track changes, or legal redline output.afilefix.com · read 4 Oct 2026
- File limits
- Scanned PDFs and password-protected PDFs are not supported, and the tool does not OCR scanned files.afilefix.com · read 4 Oct 2026
- Long documents
- Documents over approximately 150 pages may be truncated, with content beyond the analyzed portion left out of the comparison.afilefix.com · read 4 Oct 2026
- Purpose
- The tool compares two document versions and identifies added, removed, and modified content.afilefix.com · read 4 Oct 2026
- Report
- Results appear on screen, and a downloadable DOCX report includes the analysis.afilefix.com · read 4 Oct 2026
- Supported files
- It accepts PDF or DOCX files, including mixed-format pairs, up to 25 MB per file.afilefix.com · read 4 Oct 2026
- Visual changes
- The comparison focuses on text content and does not detect layout-only changes such as font, spacing, page breaks, or margins.afilefix.com · read 4 Oct 2026
