Paste your LinkedIn post below. We check the patterns that read as AI: sentence rhythm, phrasing, vocabulary, structure. Takes a few seconds. Free, no signup.
Two measurements do most of the work in AI detection. The first is perplexity: how predictable each word is. Models pick the likely word; people pick weird ones. The second is burstiness, which is just sentence variety. A person mixes short jabs with long rambling thoughts, while a model settles into a rhythm and stays there. This checker hunts those same signals, plus formulaic openings, essay conclusions, missing contractions, and paragraphs that mirror each other. Then it tells you which ones showed up. You fix what got flagged, nothing more.
It's for anyone who drafts with AI and still wants it to sound like them. Maybe ChatGPT writes your first drafts. Maybe it writes the whole post, no judgment. Run it here first and you'll see what reads as machine-written while there's still time to fix it. No account needed.