▤ TEXT TOOLS Updated July 25, 2026
Text Similarity Checker
Measure how much two pieces of writing really share.
First text
Second text
Similarity
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How it works
Word overlap uses the Jaccard index — shared unique words divided by the combined vocabulary — while phrase overlap does the same on two-word sequences, which catches rewritten but structurally identical copy.
Frequently asked questions
Is this a plagiarism checker?
It compares two texts you supply; it does not search the web, so nothing you paste is uploaded anywhere.
What overlap is too high?
Above roughly 70% word overlap the two texts are effectively duplicates for search engines.
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