Reusable hooks for common application tasks are available in React Use, a library for React developers.
Open source
9 alternatives21st
21st.dev is a marketplace for shadcn/ui-based React and Tailwind components, blocks, and hooks.
About 21st
21st.dev is an open-source community registry for React UI components inspired by shadcn/ui. It is a place to publish, discover and install minimal, modern and reusable components powered by Tailwind CSS and Radix UI. Published items move from on_review to posted to featured before appearing on the homepage and public listings.
Pricing is not clearly stated.
Key features
- Install any component with a single npx shadcn command
- Multiple demos with previews and videos per component
- Full type support out of the box with TypeScript-first approach
- Tailwind themes, global CSS styles and npm dependencies
- Light and dark mode via shadcn theme CSS variables
- Separate component logic from demo content following shadcn/ui pattern
Best for: Developers, designers and anyone who loves building beautiful interfaces.
Watch out for
- Server-side rendering is listed as coming soon, with support focused on Next.js Client Components
- JavaScript components are noted as untested, with TypeScript encouraged
21st at a glance
- Website
- github.com/serafimcloud/21st
- Category
- Development › Frontend Development
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Details verified
- Oct 22, 2026 · Official source
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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