Text Similarity Checker
Compare two texts with Jaccard and cosine word similarity.
How alike are two texts?
Comparing two pieces of text for overlap is useful for catching near-duplicates, checking rewrites, or clustering content. This tool reports two standard measures of word similarity between the passages you paste.
Jaccard similarity is the fraction of unique words the two share, while cosine similarity compares their word-frequency vectors and so also reflects repetition. Identical texts score 1; unrelated ones score near 0.
Two measures, kept private
Both are computed in your browser from the words in each text, so your content is never uploaded.
Frequently Asked Questions
What do the scores mean?
Both range from 0 (nothing in common) to 1 (identical word content). Jaccard looks at the set of shared words; cosine also accounts for how often words repeat.
Is this plagiarism detection?
No — it is a simple word-overlap measure, useful for spotting near-duplicates, not a database check against published sources.
Does word order matter?
No. Both measures compare word content, not order, so rearranged sentences with the same words score highly.
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