Text Similarity Checker
Measure how close two texts are in vocabulary and wording.
—Cosine similarity (meaning)
—Jaccard (shared words)
—Shared phrases (3 words)
—Overall
● Everything runs in your browser. Your text is never sent to a server.
How it works
Three complementary measures: cosine similarity compares word-frequency vectors weighted by rarity (TF-IDF) — high when texts talk about the same things; Jaccard similarity is the share of distinct words in common; shared phrases compares 3-word sequences, which reveals copied wording rather than shared topic. Common words (the, and, le, et…) are ignored, and words are compared without accents or case.