Text UtilitiesText CheckersFree Tool
Text Similarity Checker
Calculate Jaccard similarity between two texts based on shared unique words — enter both texts separated by a line containing just "---".
How to Use Text Similarity Checker
- 1Paste Text A
- 2Add a line with just ---
- 3Paste Text B and view the Jaccard similarity percentage
Frequently Asked Questions
Paste Text A, then a line containing just "---", then Text B — the tool splits your input on that separator.
The number of unique words shared by both texts, divided by the total number of unique words across both texts combined — a standard set-overlap similarity measure, expressed as a percentage.
No — it treats each text as an unordered set of unique lowercase words, so two texts using the same words in a different order or arrangement would score as identical.
[Text Compare](/tool/text-compare) reports raw word-count differences (added/removed) between the two texts in order, while this tool measures set-based word overlap regardless of order — they use different similarity math and can report different percentages for the same input.
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Word Frequency Counter
Rank the top 20 most-used words in a text, filtering out common English stopwords and words under 2 letters.
Text Compare
Compare two texts by word count and a simple word-overlap similarity percentage — enter both texts separated by a line containing just "---".
Plagiarism Checker
This page does not perform real plagiarism detection — it points you to real web-crawl-backed plagiarism checkers, since checking against the live internet requires an index this client-side app doesn't have.
Case Checker
Detect whether your text is UPPERCASE, lowercase, Title Case, or a mix, by comparing it against each transformed version of itself.