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21st
$5Starting price
2.2MMonthly visits
56Popularity
About 21st
21st is an AI-powered tool that creates UI components on demand for developers and designers. Users describe what they need in plain language, and the tool generates ready-to-use code snippets or design elements. It supports common frameworks and workflows, making it useful for prototyping, building responsive layouts, and iterating quickly. The tool adapts layouts based on prompts, ensuring outputs fit the intended use without manual adjustments. It is designed for frontend developers, UI designers, and software engineers who want to reduce repetitive coding tasks and focus on higher-level design decisions. Teams can use it to standardize components across projects while maintaining flexibility for customization. The platform emphasizes speed and quality, offering curated outputs that align with modern design standards. It is particularly helpful for generating buttons, navigation bars, contact forms, pricing tables, and company logos with minimal effort.
Key features
- Generates UI components from text prompts
- Adapts layouts automatically based on input
- Curated library ensures high-quality outputs
- Supports common frameworks like React
- Creates responsive design elements
- Reduces repetitive coding tasks
- Generates buttons, navbars, forms, and logos
- Integrates with existing design workflows
Use cases
- Create UI buttons and navigation bars from prompts
- Design responsive contact forms and pricing tables
- Generate company logos and branded assets
Pros
- Access to a curated catalog of 12,000+ React components, templates, and themes built by design engineers
- Components are provided as AI-ready prompts that integrate directly into workflows via tools like Cursor, Claude Code, or Lovable
- Supports shadcn/ui conventions and allows direct code installation into repositories for full ownership and customization
- Includes marketing blocks, UI components, shaders, gradients, and animated elements for diverse design needs
- Community-driven registry with contributions from over 700 design engineers and support for publishing custom components
Cons
- Free tier limits daily component copies, requiring membership for unlimited access and premium features
- Components are copied into repositories rather than imported as dependencies, which may require manual updates if underlying dependencies change
Frequently asked questions about 21st
What is 21st?
21st is a community catalog of UI components built by design engineers, including React components, full templates, shadcn themes, shaders, and gradients. Users browse, preview, and copy AI-ready prompts to integrate components into their projects via tools like Cursor, Claude Code, or Lovable.
Is 21st free to use?
Browsing the registry is free, and users receive 2 free component copies daily. Membership unlocks unlimited copies, AI credits for generating and refining UI, and access to premium templates from authors.
How is 21st different from a React component library?
Unlike a component library installed as a dependency, 21st is a registry with multiple authors and styles. Components are copied directly into a user's repository, allowing full ownership and customization without dependency upgrades.
How do I install a component from 21st?
Users can copy the AI-ready prompt for a component and paste it into an AI tool like Cursor, Claude Code, or v0, which rebuilds the component within their codebase. Alternatively, components include a shadcn CLI install command for manual integration.
Do components from 21st work with shadcn/ui?
Yes, components are published in the shadcn registry format and are designed to integrate seamlessly with shadcn/ui primitives and existing design tokens.
Can I publish my own components on 21st?
Yes, anyone can publish components to the registry. Authors retain ownership, and their components appear on their public profile. Template authors can also sell their work directly through the platform.
21st Website Engagement
Last Update: 9 days ago
Total Monthly Visits
0
Bounce Rate
0%
Visit Duration (avg)
0.00s
Pages Per Visit
0
Country Rank
0
United States
Global Rank
0
Category Rank
#0
Graphics Multimedia & Web Design
Monthly Traffic
Traffic Sources
Traffic Share By Country
- United States15.8%
- India12.6%
- Brazil12.3%
- Indonesia4.3%
- Spain3.8%
