Vibeprint
A Chrome extension (Manifest V3) that scans the page you’re on, on demand, for evidence it was built with an AI coding tool — Lovable, Bolt.new, v0, Base44 — and shows you the specific signals it found. It also recognises visual builders (Framer, Webflow, Wix, Replit) and names them without treating that as evidence of AI authorship.
Verdicts are Likely AI-built, Possibly AI-assisted, Likely hand-crafted, or
Not enough signal — never a flat accusation.
Why it can be trusted
- Nothing leaves your browser. No network requests, no analytics, no storage, no account. See the privacy policy.
- Two permissions only:
activeTabandscripting. No host permissions, so it has no standing access to any site. - Calibrated against real sites, not guesses. 71 live sites were captured and scored; the published numbers and the known limits are both in the README.
- Open source, MIT. Every detection rule is readable in the repository.
What it does not claim
A fingerprint that identifies a visual builder proves which tool made the page and nothing
about AI. A site whose builder badge was removed and which runs on a custom domain can be
genuinely undetectable — Not enough signal is the honest answer there, not a failure.