Drafts stay local.
Text extraction and comparison happen in the browser for TXT, Markdown, DOCX, and PDF files. Nothing is sent to a server.
PaperDiff
Tidal diff.
Compare two drafts by moonlight. Upload or paste TXT, MD, DOCX, and PDF files, then inspect changes in a local browser workbench.
Browser only No uploads 8 MB file cap Inline rewrite view
FILE
Document A (original)
Drop or click. TXT, MD, DOCX, PDF.
FILE
Document B (revised)
Drop or click. TXT, MD, DOCX, PDF.
Built for close revision work.
The table pairs removed and added lines, highlights word-level edits, and lets you tune the surrounding context.
Bounded for browser use.
Each file is capped at 8 MB, with text and line limits to keep the comparison responsive inside the page.