Compare two texts for similarity percentage with character, word, or line-level highlighting. Use Diff Checker for git-style line diffs.
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Quick answers to common questions
Similarity is calculated as the percentage of matching characters at the same position in both texts, relative to the longer text length.
Character mode compares letter by letter. Word mode compares word by word. Line mode compares entire lines, useful for documents and code.
Text Compare shows a similarity percentage and highlights differences inline. Diff Checker provides a full line-by-line diff view with added/removed markers, similar to git diff.
Yes. All comparison runs in your browser. Nothing is uploaded.
Your data is processed entirely in your browser. Nothing is sent to any server.