Observed arrival · 2026-09-05
DocxDiff, a Browser Redline Machine
A browser-based tool that compares two Word, PDF, Markdown, or text documents and produces numbered redlines and comparison reports.
Field notes
The interface accepts Word, PDF, Markdown, plain-text files, or pasted text, then renders changes as numbered inline redlines or a two-column comparison. Filters can isolate additions and deletions, while capitalization and whitespace-only changes can be ignored. The page also describes j/k navigation, automatic collapsing of unchanged passages, and exports to PDF, HTML, and Markdown. Saving a comparison, including its source files, is presented as a signed-in feature.
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