PageHawk
PageHawk Compare

Compare two PDFs online, free.

Drop in two PDFs and get a clean, word-level redline: every insertion, deletion, and revision, lined up side by side. No signup. No account.

🔒 Nothing is uploaded. The comparison runs entirely in your browser, so your files never leave your device. That is what no other free compare tool online can say.
A Original
Drop the first PDF
or click to choose · PDF or text
B Revised
Drop the second PDF
or click to choose · PDF or text

Free, in your browser: up to 10 pages per document, one comparison a day. The full PageHawk app has no caps.

Redlined with PageHawk · in your browser · pagehawk.co

Need more than a quick redline?

The full PageHawk app compares whole data rooms with no page or per-day caps, exports a real tracked-changes Word file and a PDF redline, and adds true redaction and Bates stamping. All on your Mac, nothing uploaded.

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PageHawk is Mac-first today; the browser and Windows builds are next. Leave your email and we will tell you the day they ship.

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Truly privateText is read and compared with your browser's own PDF engine. No server sees your file: there is nothing to leak, subpoena, or breach. It is the same on-device promise the PageHawk app makes.
Paragraph-alignedA single inserted clause does not garble everything after it. PageHawk aligns paragraphs by similarity first, then redlines word by word, the way a careful reviewer would.
Works anywhereAny modern browser, on any operating system. No install, no plugin, no account. Bring two agreement versions, a before-and-after contract, or two drafts of a brief.