Q: Is my data secure?
Yes. All processing happens entirely in your browser. No data is ever sent to any server.
Q: What do the colors in the diff output mean?
Green highlights indicate additions (text present in the modified version but not in the original). Red highlights indicate deletions (text present in the original but removed in the modified version). Gray lines are unchanged.
Q: Does it compare character-by-character or line-by-line?
The tool performs a line-by-line comparison, which is the standard approach for text diffing. Each line is compared as a unit, and the differences are shown with statistics including the number of additions, deletions, and unchanged lines.
Q: Is there a size limit for the text?
Since all processing happens in your browser, there is no server-imposed limit. The practical limit depends on your device's memory. The tool handles most typical text documents without any issues.