Radix UI vs. Shadcn UI
By SW Habitation
Radix UI
Shadcn UI
You know how building a website can feel like a lot, especially when you’re trying to style every little thing yourself? Buttons, forms, layouts… it adds up fast. That’s where UI frameworks really save the day. They give you a bunch of premade design elements that you can just drop in and go. It’s like having a design starter pack that helps your site look clean and professional, without spending forever tweaking the details.
What is Radix UI?
Radix UI is a modern component library offering headless, unstyled, and accessible primitives for React. These primitives include tooltips, dialogs, dropdowns, switches, and more, giving you full control over their design and behavior.
It's built for developers who want to create custom design systems without reinventing the wheel.
Key Features of Radix UI
- Unstyled Components: You bring your own styles using any CSS method.
- Accessibility First: Meets WCAG standards and handles focus management, keyboard support, ARIA, etc.
- Composability: Designed to work well in any React component structure.
- Animation Support: Works well with animation libraries like Framer Motion.
- Cross-browser Consistency: Tested across all major browsers.
- TypeScript Support: Full typings for all components.
Advantages of Radix UI
- Total design freedom, you're not tied to any design system.
- Accessibility is handled for you out-of-the-box.
- Works with Tailwind, Emotion, Styled Components, or vanilla CSS.
- Ideal for teams building a component library or design system.
- Tree-shakable, import only what you need.
Disadvantages of Radix UI
- No styles included, you must build your own from scratch.
- Longer time to build complete UIs compared to styled libraries.
- Slightly higher learning curve for accessibility and composition.
- Not ideal for beginners who want fast results.
What is Shadcn UI?
Shadcn UI is a beautiful and modern component library built on top of Radix UI, styled with Tailwind CSS, and intended for Next.js projects. It offers accessible, production-ready components with theming, variants, and built-in dark mode support.
You install components via CLI and get full control over the code.
Key Features of Shadcn UI
- Built on Radix Primitives: Accessibility and flexibility included.
- Tailwind CSS Styling: Easy customisation with utility-first approach.
- CLI Installation: Add only the components you need.
- Dark Mode Support: Pre-configured light and dark theme switching.
- TypeScript Friendly: Built entirely with TypeScript.
- Optimised for Next.js: Uses App Router structure and conventions.
Advantages of Shadcn UI
- Pre-styled and fast to use, ideal for building modern apps quickly.
- Easily theme-able using Tailwind and variants.
- Components are accessible by default.
- Ideal for SaaS apps, dashboards, and websites.
- Each component is editable because you own the code.
Disadvantages of Shadcn UI
- Requires Tailwind CSS, less suitable if you're not using Tailwind.
- Not suitable for other frameworks like Vue or Angular.
- Depends on Radix primitives, understanding Radix helps.
- Bundle size can grow if you install too many components.
- You need to manage components in your codebase manually.
Comparison Between Radix UI vs Shadcn UI
Use Cases of Radix UI
- Custom design systems and UI kits
- Accessibility-first enterprise apps
- Complex UIs needing fine control (e.g., advanced modals, tooltips)
- Developers who prefer full styling freedom
- Applications requiring granular component logic and behavior
Use Cases of Shadcn UI
- Fast development for SaaS products and dashboards
- Admin panels, marketing websites, and eCommerce platforms
- React/Next.js projects with Tailwind CSS setup
- Projects requiring built-in light/dark theming
- Startups and devs who want pre-built UI with flexibility
Other Resources
Conclusion
UI frameworks make building a polished website way easier. Whether you're working on something simple or a big project, they help you get things looking just right without having to stress over every little design decision. With ready-to-use components, responsive layouts, and modern styles, you can build faster and smarter.
So, pick one that works for you, and start creating a site that looks amazing from the get-go.
Frequently asked questions
Is Radix UI a UI library or just logic?
It's a headless UI library that provides unstyled, accessible primitives like Dialog, Tooltip, Tabs, etc.
Is Radix UI styled?
No. It leaves styling completely up to you — use Tailwind, CSS modules, or styled-components.
Does Radix UI support dark mode?
Yes, but it depends on your implementation — it doesn’t manage themes out-of-the-box.
Is Radix UI accessible?
100%. It strictly follows WCAG and ARIA best practices.
Is Radix UI React-only?
Yes. It only works with React (and supports TypeScript out-of-the-box).
What is Shadcn UI?
It’s a modern UI library built using Radix UI components, styled with Tailwind CSS, and ready for React apps.
Is Shadcn UI customizable?
Yes, heavily! It uses Tailwind for full styling control and supports variants.
Does Shadcn UI support dark mode?
Yes, via Tailwind’s dark mode and included config setup.
Is Shadcn UI production-ready?
Absolutely. It’s ideal for building sleek, modern, accessible UIs with minimal setup.
Does Shadcn UI work with other frameworks like Vue?
No, it’s built for React (especially Next.js) and not compatible with Vue or Angular.