21st.dev
Largest React component registry for AI applications, used by 1.4M developers with 200K monthly active users
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What is 21st.dev?
21st.dev is Largest React component registry for AI applications, used by 1.4M developers with 200K monthly active users It's designed for Front-end devs who want ready-made components in their AI IDE. and offers AI-powered functionality. This ai programming helps users write and optimize code faster.
About 21st.dev
This AI tool can help streamline your workflow and enhance productivity through intelligent automation and assistance tailored to your specific needs.
Key Strengths
- Library of React and Tailwind UI components to browse and search for free
- 21st MCP pulls components straight into AI IDEs
- Cheap Builder plan ($6/mo billed yearly)
Limitations to Consider
- Magic MCP was replaced, and old keys were reset
- AI generation needs separate credit plans on top of Builder
- Free tier allows only 2 component copies a day
Key Features
- AI-powered functionality
- User-friendly interface
- Integration capabilities
- Scalable solutions
- Regular updates
Best For
Front-end devs who want ready-made components in their AI IDE.
Skip it if: You need full-page or backend generation.
Pricing
a freemium model with both free and premium features
Free tier: yes (2 copies/day). Builder $6/mo yearly. AI credits from $15/mo yearly. (checked Oct 11, 2026)
Sources
- https://21st.dev/pricing
- https://help.21st.dev/ai/pricing
- https://www.npmjs.com/package/@21st-dev/magic
Pros, cons and pricing compiled from public sources (official pricing/docs pages, published reviews, user reports), not hands-on testing.
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What is 21st.dev?
21st.dev is Largest React component registry for AI applications, used by 1.4M developers with 200K monthly active users It's designed for Front-end devs who want ready-made components in their AI IDE. and offers AI-powered functionality.
How much does 21st.dev cost?
21st.dev offers a freemium model with both free and premium features You can start with the free tier or upgrade to premium on their official website.
What are the main features of 21st.dev?
21st.dev includes key features such as AI-powered functionality, User-friendly interface, Integration capabilities. These features make it ideal for various professional applications.
Who should use 21st.dev?
21st.dev is perfect for Front-end devs who want ready-made components in their AI IDE. It's particularly useful for users who need AI-powered assistance.