Free · No login · 100+ stack & component fingerprints

This site —
does it look AI-made?

One URL analyzes the full stack, tells you where the “vibe-coded” smell comes from, and how to fix it.

14,208
sites checked
61%
vibe detected
2,041
localhost pasted
v0LovableBoltReplitAceternity UIMagic UIReact Bits21st.devNext.jsSupabaseFramer Motionshadcn/uiTailwindVercel
v0LovableBoltReplitAceternity UIMagic UIReact Bits21st.devNext.jsSupabaseFramer Motionshadcn/uiTailwindVercel
v0LovableBoltReplitAceternity UIMagic UIReact Bits21st.devNext.jsSupabaseFramer Motionshadcn/uiTailwindVercel
v0LovableBoltReplitAceternity UIMagic UIReact Bits21st.devNext.jsSupabaseFramer Motionshadcn/uiTailwindVercel

What does it detect?

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

Ubiquitous tech like Tailwind or React never counts as a tell on its own. Only AI-specific kits or builder artifacts mark a “vibe”, and every finding comes with how to fix it.

Frequently asked questions

What does “vibe-coded” mean?
Visual and technical patterns that recur on sites built fast with AI tools (v0, Lovable, Bolt) or specific component kits (Aceternity UI, Magic UI). Purple gradients, centered heroes, and certain animation components are typical.
Which tools and stacks does it detect?
AI app builders (Lovable, Bolt, v0, Replit), component kits (Aceternity UI, Magic UI, React Bits, 21st.dev), and stacks like Next.js, React, Tailwind, Supabase, Framer Motion — Wappalyzer-style.
Does using Tailwind or React make it vibe-coded?
No. They're ubiquitous, so they never count on their own. Only AI-specific kits or builder artifacts mark a tell.
Is it free? Do I need to log in?
Completely free, no login. Just enter a URL.