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21st.dev

freemium

Open-source library of beautiful, ready-to-use React UI components built with Tailwind CSS and shadcn/ui.

About 21st.dev

21st.dev is a community-driven UI component library featuring hundreds of production-ready React components — from hero sections and navbars to AI chat interfaces and animated backgrounds. All components are built with Tailwind CSS and shadcn/ui, making them easy to copy, customize, and drop into any React project. Backed by Y Combinator.

Best For

Developers and designers who want polished, animated UI components without building from scratch. Great for landing pages, dashboards, and marketing sites.

How to Use in Your Business

Browse the component library at 21st.dev, find a component you like, copy the code, and paste it into your React project. Use Magic Chat to get AI-generated UI suggestions based on your prompt.

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