AI Text Signals checks text for patterns used in AI-writing review, inspects literal webpage clues and highlights reader-quality issues—all locally in your browser.
The boundary
The site accepts pasted text, local files, saved HTML and a sanitized snapshot copied by an optional bookmarklet. There is no account, content database, upload API, remote crawler, plagiarism search or automatic rewrite.
The result model
T is writing-pattern evidence and needs a versioned benchmark. P is categorical page and provenance evidence. Q is reader-centered quality feedback. A page-builder clue never changes a writing result, and a quality issue never becomes origin proof.
Research posture
Combined model-likeness numbers remain withheld until the exact released extractor and model have a reproducible held-out card. Visitor material is never training data.