Paste English text → get a structural style report: paragraph-length variation, sentence length, passive voice, filler phrases, repeated phrasing. No signup.
This is a writing-style checker (reference-grade heuristic). It is NOT an AI detector, and NOT GPTZero / Originality.ai / ZeroGPT. It reports measurable style features — paragraph-length variation, sentence length, passive-voice ratio, filler-phrase density, repeated phrasing — so you can improve your own prose. Validated on 1,774 real human samples (books, Wikipedia, Stack Exchange, Hacker News, news): 0 false positives on style checks. It does not claim to detect AI-written text: our own testing shows rule-based scanners miss most text from current models (e.g. only 4% flagged on 26 real DeepSeek outputs). If you need AI detection, use a dedicated statistical detector.