UI component and frontend libraries
21st.dev
Community-built React and Tailwind components designed for AI-assisted development

Task fit
Use it when
- Component Discovery
- Agent Ui Implementation
Explore
What to explore
- Component Library
- Code Implementation
- Mcp Integration
- Component
- Code
- Documentation
Access
How to access it
- CliPreferred route
Use the documented CLI workflow in the target project.
Access requirements are not recorded
- Mcp
Connect an MCP client to the recorded 21st.dev endpoint.
No user sign-in recorded
Open recorded Mcp ↗
Compatibility
Works with
- React
- Tailwind
- Web
Boundary
Important limitations
- Free semantic search; paid tiers for advanced agent generation
Alternatives
Consider instead
- Ant Design
Recorded task fit: Enterprise Dashboard.
- Headless UI
Recorded task fit: Accessible Ui Implementation.
- Radix UI
Recorded task fit: Accessible Component Foundation.
- React Aria
Recorded task fit: Accessible Design System.
Source details and references
- Domain
- 21st.dev
- Source type
- Implementation Library
- Access model
- Free
- Availability
- Active
- Coverage
- Profiled
Structured intelligence and evidence are present; explicit human-review provenance is not recorded.
Recorded governance
- Persistence: Persistent
- Redistribution: Allowed
- Attribution: Recommended
- User credential required: No
- Terms review required: No
Recorded references
- 21st.dev MCP enables semantic search and component code installation ↗ (Official Documentation, 2026-07-31)
Research path
Collections
Not currently included in a published collection.