Text Diff Tool

Text Diff Tool

Compare two versions of any text and see exactly what changed — word by word, with additions in green and removals in red. Zero setup: it's one HTML file you double-click to open in any browser. No install, no account, no internet — and your text never leaves your computer.

Includes: text-diff.html (the tool) and this README.

AI disclosure: This project includes AI-generated graphics, as declared in the AI generation disclosure section above.

Features: side-by-side paste boxes, one-click Compare, word-level highlighting, added/removed/unchanged word counts, Swap sides, Load sample, and Clear. Long-text guard keeps huge documents responsive.

Perfect for: proofreading contracts, checking essay revisions, comparing product descriptions, reviewing resume edits, or spotting changes in code snippets.

Requires: any modern web browser. Nothing to install.