Radix UI vs. Bulma
By SW Habitation
Radix UI
Bulma
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 Bulma?
Bulma is a modern, open-source CSS framework based entirely on Flexbox. Unlike Bootstrap or Foundation, Bulma is a pure CSS framework, it doesn’t come with JavaScript components, which makes it lightweight, simple, and easy to use.
Bulma is especially loved by developers who want a minimalist yet responsive framework for quickly building prototypes, small projects, and clean modern websites.
Key Features of Bulma
- Lightweight: Small file size and fast performance.
- Clean Syntax: Readable, intuitive class naming convention.
- Customizable with Sass: Use Sass variables to easily adjust themes and styles.
- Flexbox-based Grid: Fully powered by Flexbox for responsive and modern layouts.
- Responsive Modifiers: Easy-to-use breakpoints for mobile, tablet, desktop, and widescreen.
- Pure CSS: No JavaScript dependencies — works with any JS framework or vanilla JS.
- Utility Classes: Includes helper classes for spacing, colors, display, typography, and more.
Advantages of Bulma
- Responsive by Default: Built-in responsive utilities.
- Fast Prototyping: Perfect for quick MVPs and small apps.
- Lightweight: No extra JavaScript, only CSS.
- Modern Layouts: Built entirely on Flexbox.
- Cross-Browser Consistency: Works well across modern browsers.
- Beginner-Friendly: Super easy to learn and use.
Disadvantages of Bulma
- Not Ideal for Enterprises: May not scale as well for very large applications.
- No JavaScript Plugins: Requires manual integration for modals, dropdowns, or carousels.
- Smaller Ecosystem: Fewer themes, templates, and community add-ons compared to Bootstrap.
- Limited Components: Doesn’t have as many prebuilt components as Bootstrap or Foundation.
Comparison Between Radix UI vs Bulma
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 Bulma
- Prototyping: Developers can spin up layouts rapidly.
- Projects with JS Frameworks: Works seamlessly with React, Vue, Angular, or vanilla JS since it’s pure CSS.
- Portfolios & Blogs: Great for personal projects with minimal setup.
- Startups & MVPs: Perfect for small projects that need quick, clean UI.
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).
Is Bulma better than Bootstrap?
Bulma is simpler and lighter, great for small projects. Bootstrap is more feature-rich, with JavaScript plugins and a larger ecosystem, making it better for complex apps.
Does Bulma use Flexbox?
Yes, Bulma is 100% built with Flexbox, which makes it modern and responsive out of the box.
Can I use Bulma with React or Vue?
Absolutely! Since Bulma is pure CSS, it integrates easily with any JavaScript framework.
Does Bulma support dark mode?
Not natively, but you can customize Bulma with Sass or community add-ons to implement dark mode.
Is Bulma good for beginners?
Yes, Bulma is one of the most beginner-friendly CSS frameworks due to its clean syntax and simple utility classes.