Bulma vs Ninna UI
Modern CSS framework based on Flexbox with zero JavaScript. Compare Bulma and Ninna UI side by side to find which React component library fits your project in 2026.
Quick Verdict
Bulma Bulma is a free, open-source CSS framework based on Flexbox. It provides responsive CSS classes for building layouts and UI components. 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 Bulma and Ninna UI.
| Feature | Ninna UI | Bulma |
|---|---|---|
| Installation model | npm packages (12 scoped packages) | npm package or CDN link |
| Theming approach | CSS imports only — zero JS config | Sass variables |
| Dark mode | Automatic via CSS — no provider needed | Manual (Sass variable overrides) |
| Component count | 69 components | 40+ CSS components |
| Accessibility | Radix UI internally for complex widgets | None — CSS only, no ARIA |
| Bundle size | Tree-shakeable, CSS-only theming | CSS only — zero JavaScript |
| Tailwind CSS | v4 native (CSS-first config) | Not compatible (own CSS system) |
| TypeScript | Strict mode, data-slot types | N/A (CSS — no type safety) |
| Customization | 98 data-slot CSS targets + cn() | Sass variables + CSS overrides |
| Maintenance | Standard npm update | Standard npm update |
| SSR support | Full (React Router / Next.js) | Full (CSS only) |
| React version | React 19+ | Any (framework-agnostic) |
| Color system | oklch perceptual colors | HSL Sass variables |
| Learning curve | Low — CSS imports + React props | Low — clean class naming conventions |
| Update mechanism | npm update (semver) | npm update (semver) |
Why choose Ninna UI
Key advantages of Ninna UI over Bulma for your next project.
Real React components with TypeScript props and type-safe variants — Bulma is CSS class strings only
Radix-powered accessibility — Bulma has zero ARIA or keyboard navigation support
Tailwind CSS v4 native — Bulma's CSS conflicts with Tailwind utility classes
oklch perceptual colors — Bulma uses HSL Sass variables
Component-level API with props, events, and refs — not class name concatenation
Honest trade-offs
Where Bulma has advantages — we believe in transparent comparisons.
Zero JavaScript — absolute smallest possible footprint (pure CSS)
Framework-agnostic — works with Vue, Svelte, plain HTML, not just React
Clean, readable class naming conventions
No build tool required — works with a simple CDN link
Mature project with stable API
Migrating from Bulma
Step-by-step guide to move your project from Bulma to Ninna UI.
- 1
Replace Bulma CSS classes with Ninna UI React components
- 2
Remove the bulma npm package
- 3
Replace Bulma columns (columns, column) with Tailwind grid/flex or Ninna UI Grid
- 4
Add Ninna UI theme preset: `@import "@ninna-ui/core/theme/presets/default.css"`
- 5
Note: You gain accessibility and TypeScript but are limited to React
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.