Estimate lexical density: the ratio of content words to total words. Higher density = denser, more academic text.
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このツールは英語（および関連言語）向けに調整されています。日本語 の結果は意味をなさない可能性があります。
Lexical density is the proportion of content words (nouns, verbs, adjectives, adverbs) to total words.
Higher density is typical of formal, academic, or technical text. Lower density indicates more conversational or narrative prose.
This tool approximates content vs. function words using an English stopword list — sufficient for most diagnostic use.
The proportion of content words (nouns, verbs, adjectives, adverbs) to total words. Function words (the, of, and) are excluded.
Speech: 35-45%. Conversational writing: 40-50%. News articles: 50-55%. Academic writing: 55-65%.
Vocabulary variety — type‑token ratio.
analysisTotal + per‑word syllable counts.
analysisHighlight passive sentences in your writing.
analysisSentence length stats and variety score.