Shadcn UI vs. Vanilla Framework CSS
By SW Habitation
Shadcn UI
Vanilla Framework CSS
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 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.
What is Vanilla Framework CSS?
Vanilla Framework is an open-source, lightweight, and extensible CSS framework developed by Canonical (the creators of Ubuntu). It’s designed to provide a consistent and responsive design foundation without unnecessary bloat. Unlike component-heavy frameworks such as Bootstrap or Foundation, Vanilla focuses on clean base styles, responsive layouts, and utility classes that can be extended into full design systems.
It’s particularly popular for enterprise projects and design systems where consistency, accessibility, and scalability matter more than having hundreds of prebuilt UI widgets.
Key Features of Vanilla Framework
- Lightweight & Scalable: Provides only what you need, no bloat.
- Responsive Grid System: Built-in grid system for mobile-first design.
- Accessibility First: Designed with WCAG compliance in mind.
- Design Consistency: Used by Canonical across Ubuntu products.
- Sass Support: Highly customizable via Sass variables and mixins.
- Framework Agnostic: Works with plain HTML, React, Angular, Vue, or any setup.
Advantages of Vanilla CSS
- Good Documentation: Clear guidelines with usage examples.
- Clean and Lightweight: Minimal CSS, loads fast, and avoids bloat.
- Consistent UI/UX: Ideal for creating unified design systems.
- Enterprise-ready: Backed by Canonical, proven in large-scale projects.
- Customizable with Sass: Change themes, colors, and spacing easily.
- Accessibility Focused: WCAG-compliant components for inclusive design.
Disadvantages of Vanilla Framework
- Less Popular in Freelance/Startup Space: Mainly adopted by enterprises like Canonical.
- No Built-in JavaScript: Only CSS, you’ll need custom JS for interactivity.
- Limited Community Support: Not as popular as Bootstrap or Tailwind.
- Learning Curve with Sass: Beginners may find customization tricky.
- Smaller Ecosystem: Fewer templates, themes, and third-party plugins.
Comparison Between Shadcn UI vs Vanilla Framework CSS
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
Use Cases of Vanilla Framework CSS
- Company Websites: clean, responsive base styling.
- Dashboards & Web Apps: modular grid + utility classes.
- Design Systems: consistent Sass variables & mixins.
- Prototypes / MVPs: fast setup with pre-styled elements.
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
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.
Is Vanilla Framework free to use?
Yes, it is open-source and completely free to use under the LGPLv3 license.
Does Vanilla Framework include JavaScript components?
No, it’s a CSS-only framework, so you need to implement JavaScript for dropdowns, modals, etc.
Is Vanilla Framework beginner-friendly?
Yes, for basic usage. But customization requires some knowledge of Sass.
Who uses Vanilla Framework?
It is used by Canonical (Ubuntu) and related projects, but developers can also use it for general web projects.
Should I use Vanilla Framework instead of Bootstrap?
If you want a lightweight, enterprise-ready design system with a focus on accessibility, Vanilla is great. But if you need ready-to-use components with JS support, Bootstrap might be better.