shadcn/ui vs Ninna UI
Copy-paste component collection built on Radix + Tailwind. Compare shadcn/ui and Ninna UI side by side to find which React component library fits your project in 2026.
Quick Verdict
shadcn/ui shadcn/ui is a popular collection of re-usable components that you copy and paste into your project. It uses Radix UI primitives and Tailwind CSS for styling. Ninna UI offers CSS-only theming with zero runtime overhead, Radix-powered accessibility, Tailwind CSS v4 native support, and oklch perceptual colors — all delivered as standard npm packages with automatic updates.
Feature Comparison
Side-by-side comparison of key features between shadcn/ui and Ninna UI.
| Feature | Ninna UI | shadcn/ui |
|---|---|---|
| Installation model | npm packages (12 scoped packages) | Copy-paste source into your project |
| Theming approach | CSS imports only — zero JS config | Manual CSS variables + components.json |
| Dark mode | Automatic via CSS — no provider needed | Manual class toggle (.dark) |
| Component count | 69 components | 60+ components |
| Accessibility | Radix UI internally for complex widgets | Radix primitives (direct dependency) |
| Bundle size | Tree-shakeable, CSS-only theming | Zero library overhead (source is yours) |
| Tailwind CSS | v4 native (CSS-first config) | v3 + v4 support |
| TypeScript | Strict mode, data-slot types | Good (you control the source) |
| Customization | 98 data-slot CSS targets + cn() | Full source control — edit anything |
| Maintenance | Standard npm update | Manual re-copy for bug fixes |
| SSR support | Full (React Router / Next.js) | Full support |
| React version | React 19+ | React 18+ |
| Color system | oklch perceptual colors | HSL variables |
| Learning curve | Low — CSS imports + React props | Medium — copy-paste workflow, Radix concepts |
| Update mechanism | npm update (semver) | Manual re-copy + merge |
Why choose Ninna UI
Key advantages of Ninna UI over shadcn/ui for your next project.
Zero maintenance burden — bug fixes delivered via npm update, not manual re-copy
No Radix peer dependencies — Ninna UI wraps Radix internally so no types leak
One CSS import for complete theming vs manual CSS variable management
oklch colors for perceptually uniform palettes vs HSL variables
98 data-slot CSS targets for surgical customization without owning source
Honest trade-offs
Where shadcn/ui has advantages — we believe in transparent comparisons.
Full source control — you can modify any component internally
Larger community and ecosystem of extensions
Supports React 18 (Ninna UI requires React 19+)
More flexible — no library API constraints
Migrating from shadcn/ui
Step-by-step guide to move your project from shadcn/ui to Ninna UI.
- 1
Replace copy-pasted components with npm imports: `import { Button } from "@ninna-ui/primitives"`
- 2
Remove Radix peer dependencies — Ninna UI wraps Radix internally via @ninna-ui/react-internal
- 3
Replace manual CSS variables with a single theme import: `@import "@ninna-ui/core/theme/presets/default.css"`
- 4
Delete `components.json` — Ninna UI uses standard npm packages
- 5
Keep all Tailwind utility classes — they work alongside Ninna UI components
Ready to try Ninna UI?
Install in under 60 seconds. One CSS import, zero JavaScript config.
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This comparison page is for informational purposes only. Information is based on official documentation and public data. All trademarks, logos, and brand names are the property of their respective owners. Last updated: March 2026.