shadcn/ui
Copy-in React components that AI tools love.
shadcn (open source) · open source · checked Oct 22, 2026
What it is
shadcn/ui is an open-source set of accessible React components you copy into your project; the de facto component vocabulary of v0 and most AI app builders.
Use cases
- →Consistent UI in AI-generated React apps
- →Owning your component code
- →Design systems foundation
Pros
- +Free, you own the code
- +Every AI tool knows it
- +Tailwind-based
Cons
- −React-only
- −You maintain the copied code
Where it ranks
- #5 Best AI UI & Design-to-Code Tools
Not an AI tool, but the component library AI tools speak best. Free.
FAQ
How much does shadcn/ui cost?
Free and open source. (As checked on 2026-10-22; confirm on https://ui.shadcn.com/.)
What is shadcn/ui best for?
#5 in Best AI UI & Design-to-Code Tools: The UI foundation for AI-generated React.
What are the best alternatives to shadcn/ui?
v0 (Vercel's AI builder for React/Next.js UIs and apps); Builder.io (Visual AI dev platform that works in your codebase and design system).
Is shadcn/ui open source?
Yes, shadcn/ui is open source (or has an open-source core).