About DocxDiff

DocxDiff compares two versions of a document and shows exactly what changed: a word-level redline with every change numbered, from Word, PDF, Markdown or plain text files. The comparison runs in your browser, so documents stay on your device unless you choose to save them.

Who writes our guides

EJ Archuleta is a licensed attorney and the builder of DocxDiff. He writes and reviews every guide on this site.

The guides explain how document comparison and redlining work, for lawyers and for anyone checking what changed before they sign. They are general information, not legal advice, and reading them does not create an attorney-client relationship. DocxDiff is a software tool and does not provide legal advice.