FixMyDocsFixMyDocs

Document Comparison Tool

Upload two versions of any document and get a visual line-by-line diff with AI-powered analysis. See exactly what changed, whether it improved, and get a clear recommendation.

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Drag and drop your PDF, DOCX, or TXT file here, or click to browse.

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Max file size: 10MB

Files are auto-deleted after processing. We never store your documents.

100% Free · No Signup · Secure

See Exactly What Changed — and Whether It's Better

Every document goes through revisions. But tracking what actually changed between versions is painful: Word's Track Changes is cluttered, PDF comparison tools are expensive, and manually reading two versions side-by-side is error-prone.

FixMyDocs gives you a clean, color-coded diff plus an AI analysis that tells you not just what changed, but whether the changes were improvements or regressions.

Visual Diff + AI Intelligence

Color-Coded Line Diff

Added lines are highlighted in green. Removed lines are highlighted in red. Unchanged content stays neutral. At a glance, you can see the scope and location of every change in the document.

AI Change Analysis

Our AI reads both versions and provides a structured analysis: the overall change level (minimal to complete rewrite), an improvement score from -10 to +10, a natural-language summary of what changed and why it matters, specific improvements and regressions listed separately, and a clear recommendation on which version to keep.

Real-World Use Cases

  • Contract negotiations: Compare the contract you sent with the version that came back. Instantly see which clauses the other party modified.
  • Academic revisions: Track changes between your original submission and the version after peer review feedback.
  • Legal redlines: Compare original and amended agreements to verify that only agreed-upon changes were made.
  • Editing quality: Send a document through any FixMyDocs workspace, then compare the original with the refined version to see exactly what the AI improved.
  • Version control: Compare two drafts of a proposal to decide which direction to pursue.

No Other AI Tool Does This

Most AI chatbots can summarize a document or edit it — but none offer file-native version comparison with visual diff. You'd need expensive desktop software like DeltaView or Workshare for this. FixMyDocs does it in your browser, for a fraction of the cost.

How It Works

01

Upload

Drop your messy PDF, DOCX, or TXT file into the secure zone.

02

AI Fix

Our engine analyzes structure, spacing, and grammar instantly.

03

Export

Download your perfectly formatted document in any format.

Common Questions