ShadCN vs MUI vs Radix: The React Component Library Showdown

Picking a component library is one of the most impactful architecture decisions for a React project. Here's the honest breakdown.

The Contenders

MUI (Material UI)

The OG React component library. Full-featured, heavily opinionated, Material Design styled.

import Button from '@mui/material/Button';
 
<Button variant="contained" color="primary" onClick={handleClick}>
  Click Me
</Button>

Pros: Massive component set, great documentation, accessible by default, large community. Cons: Material Design aesthetic is immediately recognizable (not always a plus), large bundle size, customization requires theme override gymnastics.

ShadCN/UI

Not a library you install — it's a collection of components you copy into your project.

npx shadcn-ui@latest add button
# Creates src/components/ui/button.tsx in YOUR project

import { Button } from "@/components/ui/button"
 
<Button variant="outline" size="sm">Click Me</Button>

Pros: Full ownership of component code, Tailwind-native, beautiful defaults, easily customizable, zero vendor lock-in. Cons: Copying components = you own the maintenance, requires Tailwind setup, no global version updates.

Radix UI

Headless primitives — behavior and accessibility, zero styling.

import * as Dialog from '@radix-ui/react-dialog';
 
<Dialog.Root>
  <Dialog.Trigger>Open</Dialog.Trigger>
  <Dialog.Content>
    {/* Fully accessible dialog, you style it entirely */}
    <Dialog.Title>My Dialog</Dialog.Title>
  </Dialog.Content>
</Dialog.Root>

Pros: Best-in-class accessibility, completely custom styling, tiny footprint. Cons: You have to style everything from scratch.

The 2026 Winner By Use Case

Internal tools / speed?      → MUI (fastest to build, good enough)
Modern product with design?  → ShadCN (your code, Tailwind native)
Design system from scratch?  → Radix (full control)

The Trend

ShadCN has dominated the conversation. Its copy-paste model means you own the components and can modify them freely. Combined with Tailwind v4, it's becoming the default choice for new TypeScript React projects in 2026.

ShadCN is built ON Radix — the best of both worlds.