shadcn/ui Complete Guide: Building Beautiful React Apps in 2025

What is shadcn/ui?

shadcn/ui is not a component library - it's a collection of reusable components you copy into your project. This approach gives you full ownership and customization control.

Why shadcn/ui?

Key Benefits:

• Full ownership: Components live in your codebase
• Customizable: Modify anything without fighting the library
• Accessible: Built on Radix UI primitives
• Beautiful defaults: Great design out of the box
• No dependencies: No version conflicts

Getting Started

Installation

shadcn/ui works with Next.js, Vite, Remix, and other React frameworks:

1. Initialize your project with Tailwind CSS
2. Run the shadcn/ui init command
3. Add components as needed

Adding Components

Components are added individually, keeping your bundle small:

• Only install what you need
• Each component is independent
• Easy to customize after installation

Core Components

Form Components

• Input, Textarea, Select
• Checkbox, Radio, Switch
• Form validation with React Hook Form

Layout Components

• Card, Dialog, Sheet
• Tabs, Accordion
• Navigation Menu

Feedback Components

• Toast, Alert
• Progress, Skeleton
• Loading states

Customization

Theming

shadcn/ui uses CSS variables for theming:

• Define colors in globals.css
• Support dark mode easily
• Create custom color schemes

Component Variants

Extend components with custom variants:

• Add new styles
• Modify existing variants
• Create compound variants

Best Practices

1. Keep components updated: Check for improvements
2. Customize thoughtfully: Don't over-engineer
3. Use the CLI: Faster than manual copying
4. Follow accessibility guidelines: Don't break Radix defaults

Comparison with Other Libraries

Our Recommendation

shadcn/ui is the best choice for teams who want beautiful, accessible components without the constraints of a traditional component library. Pair it with Tailwind CSS for maximum productivity.

Explore UI tools in our Tools directory or use our AI Stack Builder for recommendations.

Sources

• shadcn/ui Documentation
• Radix UI Primitives
• Tailwind CSS Documentation