Find every discrepancy between two contracts in seconds, not hours.

Upload Document A and Document B, and our contract comparison tool reads both documents and highlights every difference between them — added clauses, removed clauses and amended wording — ranked by severity. There's no need to read line by line: in seconds you get a clean, plain-English summary of exactly what changed between the two contract versions. Your first contract comparison is free, with no card required.

Yes — your first full comparison is completely free, no card and no trial sign-up tricks. You upload both documents and get the entire report, including the Critical Issues and Warnings breakdown and the PDF export. After your free comparison, a single affordable monthly subscription covers unlimited contract comparisons. See Pricing for details.

It does everything a traditional redline or "compare documents" feature does — it shows every difference between two versions of an agreement — but it goes further. Instead of just marking text as inserted or deleted like a Word document compare, it interprets each change and tells you whether it's a Critical Issue (something that materially shifts risk, money or obligations) or a lower-priority Warning. So you're not just seeing what changed, you're seeing what matters.

Yes. You can compare across formats — a signed PDF against a Word (DOCX) draft, an Excel rate card against a CSV, or plain text pasted straight in. The formats don't need to match. Supported file types include PDF, DOCX, XLSX, CSV and plain text. Legacy .doc files should be saved as .docx first.

Any two text-based agreements: NDAs, employment contracts, service agreements, SaaS and software licences, supplier and vendor contracts, leases and rental agreements, terms and conditions, MSAs, SOWs, loan agreements and more. If you have an old version and a new version — or two competing drafts — the tool will compare the contracts clause by clause and surface the differences.

The engine is extremely thorough at catching differences between two documents — far more consistent than a tired human eye scanning dense legal language. That said, it's designed as a fast first-pass contract review, not a replacement for legal advice. For anything high-stakes, use the report to focus your lawyer's time on the clauses that actually changed, rather than paying them to re-read the whole agreement from scratch.

Yes. Files are sent over an encrypted (HTTPS) connection, processed in memory, and never written to disk or a database. Your documents are never stored, never reviewed by a human, and never used to train any algorithm. The text exists only for the few seconds it takes to run the comparison, then it's discarded. See our Security & Privacy page for the full picture.

Nothing — they're never saved. We deliberately store no contract files and no contract text. There is no copy to leak, subpoena or lose. You get your comparison report, and the underlying documents simply cease to exist on our side.

Seconds. A manual side-by-side review of two contracts can take a careful reader an hour or more; our engine reads both documents and returns a ranked report of every material difference in well under a minute — then lets you export it as a PDF to share with your team or counsel.

One straightforward monthly subscription covers unlimited comparisons — ideal if you review contracts regularly. There are no per-document fees and you can cancel anytime from your account. But you can run your first comparison free before deciding. See Pricing.