Readability Checker
Paste your draft to see what hurts readability — long sentences, adverbs, passive voice and filler words — highlighted live. Unlike most checkers, this one runs entirely on your device.
Highlighted preview
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How it works
Sentences over ~18 words are flagged (over ~25 more strongly), since long sentences are harder to follow. Words ending in “-ly”, common filler words and likely passive constructions are marked so you can tighten them. The Flesch reading-ease score and grade level summarize overall difficulty. Everything is computed in your browser — nothing is uploaded. Need raw counts? Use the word counter.