21st.dev is an open source platform where developers discover, share, and remix production-ready React Tailwind UI components, serving as a community-driven alternative to paid UI kit subscriptions.
The Problem
Building polished landing pages and dashboards requires more than the base shadcn/ui primitives. Design teams reach for paid UI block libraries like Landingfolio or premium Tailwind UI kits, but those lock useful components behind subscriptions and restrict copying. The open source component ecosystem has lacked a central, high-quality registry with a CLI workflow.
How 21st.dev Solves It
21st.dev provides a community registry of pre-built, production-ready React Tailwind components that follow shadcn/ui conventions. Components cover landing page sections, pricing tables, dashboards, and marketing blocks. Install any component directly into your project with the shadcn CLI; no package manager dependency, no subscription. MIT license applies to all components.
Key Features
- Community registry of production-ready React Tailwind components for landing pages, dashboards, and marketing sites
- shadcn/ui-compatible: drop-in additions to any existing shadcn/ui project
- CLI installation: add components directly into your codebase with one command
- AI UI builder: generate new component variants from text prompts
- VS Code extension for in-editor component browsing and insertion
Who It's For
21st.dev is best for frontend developers working on React projects with Tailwind CSS who want high-quality, production-ready UI components they can copy, customize, and own outright, rather than paying for a locked-down UI kit subscription.
Compared to Landingfolio
Unlike Landingfolio, which charges for premium UI blocks and restricts copying, 21st.dev provides MIT-licensed components that developers can copy, modify, and ship freely. The community model means the registry grows continuously without a subscription gate.
