FREE TEXT SIMILARITY · EN / UKR / RU

Text Similarity Calculator

Compare two documents with cosine similarity on top of either raw term weights (BoW) or TF-IDF weights. Use top contribution terms to audit why each score came out as it did.

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MEASUREMENT MODEL

Cosine similarity on explicit feature vectors

The similarity tool scores overlap across term-weight vectors. You can switch between raw term weights and TF-IDF weights to check whether a result is driven by generic language or by truly distinctive terms.

Cosine similaritysum(a×b) ÷ (||a|| × ||b||)

Term contributiona_i × b_i

DIAGNOSTIC VIEW

Inspect top contribution terms instead of relying on one score

Two modes

Use Bag of Words for raw overlap and TF-IDF for rarity-aware overlap.

Contribution table

View per-term overlap weights and absolute contribution to the final score.

Input flexibility

Analyze local text instantly or call the public API for URL inputs.

Export

Download scored terms and top overlap rows for post-processing or QA.

WHEN TO USE

Use similarity checks before semantic-only judging

Similarity gives a surface overlap score. It is useful for revision QA, duplicate checks, and duplicate-safe candidate filtering before manual review.

Text Analysis Comparison →Bag of Words Analyzer →Similarity API →