VibeUI vs 21st.dev
21st.dev is an open marketplace where many authors publish shadcn-style components, so quality and style vary. VibeUI is a single curated catalog: every item documents its dependencies, what to keep and what to adapt, and that becomes an instruction for your AI agent. Both install via the shadcn CLI.
| Feature | VibeUI | 21st.dev |
|---|---|---|
| Who makes components | One team, one quality bar | Community, many authors |
| What's inside | 2,048 items: components, landing blocks (hero, pricing, navbar, FAQ, data grid), animations and full-page scenarios | Community components and blocks |
| Install | shadcn CLI: npx shadcn add <item url>, code is copied into your project | shadcn CLI: npx shadcn add <item url>, code is copied into your project |
| AI agent workflow | Copy for AI: a ready instruction for Cursor / Claude Code — install command, dependencies, what to keep and what to adapt | Copy prompt button on each component page; MCP and CLI for agents |
| Price | Catalog and previews free; 20 copies a month with an account; PRO — $9/month | Browsing free, 2 copies a day; membership — unlimited copies and premium templates |
FAQ
Can I use VibeUI together with shadcn/ui?
Yes. The VibeUI registry is shadcn-compatible: items install with the same npx shadcn add into a project that already uses shadcn/ui and don't break it.
Do I need an account to browse components?
No. The catalog, live previews and search are open without an account. An account is needed to copy code: 20 free copies a month.