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Compare Two Contracts

Got a revised draft back? Paste both versions to see exactly what changed, word by word — then get each change explained in plain English, with who it favors and what to ask.

Compare contract versions

0 / 50,000 characters

0 / 50,000 characters

The redline is built in your browser. Text is sent to the AI only for the explanation and is not stored.

What to look for

Six small edits that change a contract's meaning

The most consequential changes are often the shortest. Check every redline for these.

  • “Shall” becomes “may”

    An obligation turns into an option. One word, and the other side no longer has to do it.

  • “And” becomes “or”

    A list of conditions that all had to be met now needs only one — or the reverse.

  • Numbers and deadlines

    Net 30 to Net 60, 14 days' notice to 90, a cap of fees paid to fees paid in the last month.

  • Deleted caps and carve-outs

    A removed liability cap or a vanished exception rarely shows up as a dramatic change, but it can matter most.

  • New “sole discretion”

    Adding these words lets one side decide alone — on approvals, payment, or termination.

  • Edited definitions

    Changing a defined term like “Confidential Information” or “Deliverables” changes every clause that uses it.

Plain-English answers

How does the contract comparison work?

Two steps. First, your browser lines up both versions and marks every added and removed word. Then the AI reads both versions and explains the changes that matter, ranked by importance.

The redline ignores spacing and blank lines, so reformatting doesn't show up as a change. The AI explanation skips typo fixes and renumbering and focuses on money, deadlines, obligations, liability, IP, and termination. Tell it which side you're on — freelancer, tenant, buyer — and it judges each change from your point of view.

What should I do after comparing?

Accept the changes you can live with, push back on the ones that shift risk to you, and ask about anything unexplained.

Reply with a short list rather than a rewritten draft — “we accept 1, 3, and 4; we'd like to keep the original wording on 2 and 5”. Then run the final version through a full AI contract review to catch anything that was a problem in both drafts. If one clause in the new version is hard to follow, paste it into the legalese translator.

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FAQ

Contract comparison questions

  • How do I compare two versions of a contract?
    Paste the original and the revised version into the two boxes and select Compare versions. You get a redline showing every added and removed word, plus an AI summary of each meaningful change and whether it favors you or the other party.
  • What is a redline?
    A redline is a marked-up comparison of two drafts that shows deletions (usually struck through in red) and additions (usually underlined). It lets you review only what changed instead of rereading the whole document.
  • Why not just rely on tracked changes?
    Tracked changes only show what the other side chose to track. Edits made with tracking off, or changes accepted before sending, are invisible. Comparing two clean copies catches everything.
  • Is there a size limit?
    The redline works on documents up to 50,000 characters each and runs in your browser. The AI explanation supports up to 20,000 characters per version — for longer contracts, compare the sections that changed.
  • Does it work with PDF or Word files?
    Paste the text from each file. Formatting, spacing, and blank lines are ignored, so text copied from a PDF compares cleanly against text from a Word document.
  • Is my contract stored?
    No. The redline is built in your browser. For the AI explanation, both versions are sent to the AI provider to generate the summary and are not saved to any database.

FreeContractReviewer.com provides AI-generated information to help you understand possible contract issues. It is not legal advice and does not replace a qualified lawyer.