About VibeCheck

VibeCheck is a free tool that checks, from a single URL, how much a website looks vibe-coded (AI-generated).

It analyzes a site's HTML, scripts, and styles to detect AI app builders like v0, Lovable, Bolt, and Replit, and the fingerprints of component kits like Aceternity UI, Magic UI, React Bits, and 21st.dev — and shows the stack (Next.js, React, Tailwind, Supabase) Wappalyzer-style.

An honest confession

Yes, this site is vibe-coded too. Run VibeCheck on itself and it scores 100% vibe-coded — we built it with Next.js + Magic UI + purple gradients. That's separate from the detection accuracy, promise. It's a tool built for the fun of throwing stones from a glass house.

How it works

Detection runs in your browser; the server only proxies the target site's content. No login, no personal data — just a URL.

For suggestions or questions, use the contact page.