Prose measures how easy your writing is to read — it counts words, sentences and syllables, works out the reading-ease score and grade level, and flags the sentences that run long or dense. Useful for tightening posts, emails and docs. Nothing is uploaded.

Your text

Your text, with harder sentences marked

Scores use the Flesch reading-ease and Flesch–Kincaid grade formulas, with syllables estimated by a vowel-group heuristic — so treat the numbers as a guide, not a verdict. The formulas are tuned for English. Everything runs on your device.