Redline
Two versions of the same contract, side by side, with every change marked. Nothing is uploaded.
Earlier version
Later version
Reading the example contract
Two versions of the same agreement, so you can see what it marks.
Guide: comparing two versions of a contract
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Page opens since 16 September 2026:
— counted by hits.sh, which is told the address of
this page and nothing else: no cookie, no account, no profile, and nothing about your contracts,
which never leave this browser.
Measured against real revised versions of real documents — including a file compared with itself, which must report exactly zero changes and does. The test set and the results are published, so the claim can be checked instead of believed.
Reads text-based PDFs. A scanned contract has no text to compare, and it says so rather than reporting that nothing changed — which would be the dangerous answer.