Text Diff Checker
Free online text diff tool. Compare two texts side by side with line-level highlighting of additions and deletions — private, in-browser.
FAQ
How are differences shown?
Line-by-line comparison with green for additions and red for deletions, like a code review.
Can it ignore whitespace?
Yes — optional whitespace-insensitive mode for cleaner comparisons.
Is confidential text safe here?
Yes. Comparison runs entirely in your browser; nothing is transmitted.