How text statistics works
This analyzer breaks your text into counts of words, sentences, paragraphs and characters (with and without spaces), then measures readability. Words are split on any whitespace, sentences on terminal punctuation, and paragraphs on blank-line breaks.
Average word length is the mean number of letters per word; average sentence length is the mean number of words per sentence. Syllable density uses a vowel-group heuristic to estimate the syllables in each word, which feeds the readability formulas.
Readability is reported as a Flesch reading ease score (higher is easier) and a Flesch-Kincaid grade level (the US school grade needed to comprehend the text), plus a plain-language reading level band. Everything runs locally in your browser, so your text never leaves your device.