Mantine vs Ninna UI
Full-featured React component library with 120+ components. Compare Mantine and Ninna UI side by side to find which React component library fits your project in 2026.
Quick Verdict
Mantine Mantine is a comprehensive React component library with 120+ hooks and components. It includes its own styling system, form management, dates, and rich text editor packages. 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 Mantine and Ninna UI.
| Feature | Ninna UI | Mantine |
|---|---|---|
| Installation model | npm packages (12 scoped packages) | npm packages (@mantine/core + many addons) |
| Theming approach | CSS imports only — zero JS config | JavaScript MantineProvider + createTheme() |
| Dark mode | Automatic via CSS — no provider needed | ColorSchemeProvider (JS runtime) |
| Component count | 69 components | 120+ components |
| Accessibility | Radix UI internally for complex widgets | Built-in ARIA compliance |
| Bundle size | Tree-shakeable, CSS-only theming | Large (many packages + PostCSS) |
| Tailwind CSS | v4 native (CSS-first config) | Optional v3 integration (not native) |
| TypeScript | Strict mode, data-slot types | Excellent type coverage |
| Customization | 98 data-slot CSS targets + cn() | JS theme object (createTheme) |
| Maintenance | Standard npm update | Standard npm update |
| SSR support | Full (React Router / Next.js) | Good support |
| React version | React 19+ | React 18+ |
| Color system | oklch perceptual colors | Open Color palette |
| Learning curve | Low — CSS imports + React props | High — complex API surface |
| Update mechanism | npm update (semver) | npm update (semver) |
Why choose Ninna UI
Key advantages of Ninna UI over Mantine for your next project.
CSS-only theming — no MantineProvider wrappers or JS config needed
Tailwind CSS v4 native — Mantine uses its own PostCSS-based system
Dramatically simpler API surface — 69 focused components vs 120+ sprawling API
Smaller bundle — no PostCSS build step for component styles
Lower learning curve — CSS imports + React props vs complex Mantine API
Honest trade-offs
Where Mantine has advantages — we believe in transparent comparisons.
120+ components — far more extensive (dates, charts, rich text, etc.)
Mature ecosystem with comprehensive documentation
Built-in form management (@mantine/form)
Supports React 18 (Ninna UI requires React 19+)
Excellent TypeScript coverage across all packages
Migrating from Mantine
Step-by-step guide to move your project from Mantine to Ninna UI.
- 1
Remove `MantineProvider` wrapper from your app root
- 2
Replace `@mantine/*` imports with appropriate `@ninna-ui/*` packages
- 3
Replace `createTheme()` with CSS theme preset import — no JS config needed
- 4
Remove PostCSS configuration — Ninna UI uses Tailwind CSS v4
- 5
Note: Fewer components initially, but smaller bundle and CSS-only theming
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.