What is 21st.dev?
21st.dev is a UI component registry and AI-native frontend development platform built for developers, designers, product teams, and AI coding agents. Its marketplace provides a large collection of React, Tailwind and shadcn-style components, complete screens, templates, themes, shaders and other interface elements created by design engineers. Components can be searched and previewed, with AI-ready prompts and source code that can be brought directly into projects. 21st also provides an MCP server and CLI that allow AI coding agents such as Cursor, Claude Code, Windsurf and other MCP clients to search the catalog, retrieve components, install them, generate new UI, review existing interfaces and publish components or themes.
Software Category
Developer & Software Development
Pricing Model
Freemium + Subscription + AI Credit-Based
Product Type
saas
Starting Price
USD $615.00
21st.dev Features
✓
Key Feature
Access to over 12,000 React components, templates, themes, shaders, gradients, and design resources via a community-driven marketplace.
✓
Key Feature
AI-native features including MCP server and CLI that enable AI coding agents to search, retrieve, install, and generate UI components directly within development workflows.
21st.dev Pricing
Billing Model: Freemium + Subscription + AI Credit-Based
View Official Pricing →
USD $615.00 / starting
Check the official vendor site for volume discounts, regional tiers, and enterprise terms.
21st.dev Pros and Cons
✓ Key Strengths (Pros)
- • Access to over 12,000 React components, templates, themes, shaders, gradients, and design resources via a community-driven marketplace.
- • AI-native features including MCP server and CLI that enable AI coding agents to search, retrieve, install, and generate UI components directly within development workflows.
⚠ Considerations & Limitations (Cons)
- • No user reviews or ratings are currently available (review count 0).
- • Starting price of $615 USD may be cost-prohibitive for individual developers or small teams.