Discover community-made UI components | 21st

21st is a community-made UI component library for React and Next.js.
The site organizes components into many categories, including buttons, cards, forms, dialogs, navigation menus, testimonials, and pricing sections.
It highlights large component counts in some categories, such as Buttons, Cards, and Forms.
The library includes many AI-focused components, such as AI chats, glowing AI chat assistants, AI chat inputs, and AI chat image generation.
Popular featured items include container scroll animation, scroll media expansion hero, spline scene, spotlight card, and radial orbital timeline.
It offers a large set of futuristic and visual-effect components, including shaders, glowing effects, liquid effects, and animated heroes.
The site includes sections for marketing blocks and product/UI patterns like heroes, features, calls to action, and onboarding screens.
It surfaces newest and popular items, suggesting the component library is actively updated and curated.
The page also promotes agentic workflows through an MCP server for using agents.
The interface includes search, filters, and sign-in options for browsing and accessing components.

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