Average sentence length, standard deviation, longest / shortest sentences, and a histogram of sentence lengths.
This tool measures the mean and standard deviation of sentence length across your text.
A high standard deviation usually correlates with more engaging, varied prose — long sentences carry detail, short sentences punch.
Hemingway-style writing keeps average sentences around 12 words. Academic writing often runs 25+.
For most writing, 15–20 words per sentence reads well. Mix short and long for variety — high standard deviation usually correlates with engaging prose.
% content words vs. function words.
analysisVocabulary variety — type‑token ratio.
analysisTotal + per‑word syllable counts.
analysisHighlight passive sentences in your writing.