AI Content Detector

Private, explainable AI-writing signal review. Cautious risk bands, local history, and no authorship verdict. Writing Signal Review examines pasted or selected text for explainable patterns associated with formulaic writing. It is a cautious review aid, not an authorship detector and not proof that text was written by AI or by a person.

Features:

• Local deterministic analysis with no remote API or model
• Clear risk-indicator bands and sentence-level explanations
• Sample-quality guidance; samples under 40 words are not scored
• Confidence capped at medium to avoid false certainty
• Up to 25 recent reviews stored only in the browser
• Copy and download reports that always include the not-proof limitation

Paste text into the popup, or select text on a page and invoke the context-menu action. No selected text, pasted text, or result is sent over the network. The extension has no host permissions.

Writing patterns overlap across human and machine-assisted text. Do not use this tool as the sole basis for academic, employment, moderation, legal, or disciplinary decisions.