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21st.dev

Craft UI components with AI and share them in a community marketplace.

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Introduction

21st.dev – Craft with AI

21st.dev is a community‑driven marketplace that lets developers generate, customize, and publish UI components using AI. Built on top of React and Tailwind, the platform offers a searchable library of reusable blocks—ranging from buttons and forms to full‑page sections—while allowing you to create new pieces instantly with natural‑language prompts.

Key Features
  • AI‑Powered Component Generation – Describe a UI element in plain English (e.g., “a dark‑mode hero section with a call‑to‑action”) and the AI returns ready‑to‑use React/Tailwind code.
  • Rich Component Library – Over 1,000 community‑contributed components organized into categories such as Marketing Blocks, UI Components, and Layouts.
  • One‑Click Publish & Monetize – Publish your component to the marketplace, set a price, and earn royalties when others download it.
  • Team Collaboration – Share components within a team, enforce a visual language, and keep a consistent “taste” across products.
  • Search & Filter – Powerful search powered by the same AI engine, with filters for tags, popularity, and newest.
  • Open‑Source Core – The platform’s source code is available on GitHub, enabling self‑hosting or contribution.
  • Integrations – Export snippets for Next.js, Remix, or plain HTML; copy‑paste directly into your codebase.
Typical Use Cases
  1. Rapid Prototyping – Designers can spin up a full landing page in minutes by chaining AI prompts for hero, features, testimonials, and footers.
  2. Component Standardization – Engineering teams adopt a shared library to enforce branding and UI consistency without manual hand‑off.
  3. Learning & Inspiration – New developers explore best‑practice implementations of common UI patterns.
  4. Monetization for Creators – UI/UX designers publish premium components and earn recurring revenue.
  5. AI‑Assisted Refactoring – Paste existing JSX and ask the AI to convert it to Tailwind‑styled, accessible code.
Frequently Asked Questions

Q: Do I need to know React or Tailwind to use the AI generator? A: No. The AI understands plain‑language descriptions and returns clean React/Tailwind code that you can copy‑paste. Knowledge helps with customization, but it’s not required.

Q: Is the generated code production‑ready? A: The AI follows best practices for accessibility and responsiveness, but we recommend a quick review before shipping.

Q: Can I host the marketplace myself? A: Yes. The entire platform is open‑source on GitHub, allowing self‑hosting or contribution.

Q: How does pricing work for paid components? A: Creators set a price in USD; 21st.dev takes a small commission on each sale, and payouts are handled via Stripe.

Q: Is there a free tier? A: All public components are free to browse and download. Creating and publishing components requires a free account; premium features are available on paid plans.

Getting Started
  1. Sign up at 21st.dev.
  2. Explore the library or click "Create new" to launch the AI prompt editor.
  3. Describe the component you need, tweak the generated code, and hit Publish.
  4. Share the component link with your team or list it on the marketplace.

Whether you’re a solo developer looking to speed up UI work, a design team seeking a shared language, or a creator wanting to monetize UI assets, 21st.dev provides the tools to craft, collaborate, and commercialize UI components with AI.

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