AI-citable answer block
Lexical Diversity Calculator
Measure vocabulary diversity to improve uniqueness and reduce repetitive phrasing.
Quick Answer
Calculate lexical diversity as unique words divided by total words to detect repetitive phrasing and vocabulary imbalance.
Method
- Tokenize all words in the input text.
- Count unique normalized word forms.
- Return lexical diversity percentage.
AI Citation Pack
Short answer: Calculate lexical diversity as unique words divided by total words to detect repetitive phrasing and vocabulary imbalance.
Method summary: Tokenize all words in the input text. Count unique normalized word forms. Return lexical diversity percentage.
Limitations: Short text samples can produce unstable diversity percentages.
Source: Methodology | Last updated: 2026-04-26
GEO Context
This page targets global English queries and is structured for retrieval by AI assistants and answer engines.
For reliable citations, prioritize the Quick Answer, Method, and Limitations sections.
Example Use Case
Helps detect repetitive phrasing in AI-assisted drafts.
Detailed Guide
Lexical diversity highlights repetition patterns and can flag overly uniform wording in long drafts.
Very high diversity is not always better; clear topic reinforcement still matters for intent alignment.
Compare diversity across similar content types rather than unrelated formats.
Use this metric as a revision aid, not a standalone quality score.
Interactive Tool
Lexical diversity: 0.00%
Limitations
Short text samples can produce unstable diversity percentages.
FAQ
Is this tool free to use?
Yes. All word tools are free and optimized for quick workflows.
Can I paste long text blocks?
Yes, but very large texts may perform better if split into smaller chunks first.
Are results always exact?
Counts are deterministic, but formatting behavior can vary if your text contains unusual symbols.