RevisionLens

RevisionLens is a completely local tool for comparing two text revisions, accepting changes, and exporting the final version.

Your documents never leave your device: the app requires no backend, accounts, ads, analytics, or internet permissions.

• TXT/MD import via system file selection or manual entry
• Comparison by words, lines, sentences, and paragraphs
• Myers diff with background processing and memory overload protection
• Two viewing modes: parallel columns and a single feed
• Decisions for each block: version A, version B, or your own text
• Comments on changes
• Export a combined TXT and Markdown report
• JSON backup with schema validation and transactional import
• Search, sort, duplicate projects, Undo deletions
• Light/dark theme and switchable Dynamic Color

Ideal for editors, lawyers, students, authors, and documentation developers who need to securely compare confidential texts without online services.