Shadcn UI vs. Bootstrap

ImageBy SW Habitation
What is Shadcn UI ?

Shadcn UI

vs
Bootstrap

Bootstrap

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

What is Shadcn ?
  • 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 Bootstrap ?

Bootstrap is the most popular CSS Framework for developing responsive and mobile-first websites. Do you know it was originally developed by Twitter now X and is now maintained by a large community of developers. Bootstrap provides a collection of pre-designed HTML, CSS, and JavaScript components that can be used to build websites quickly and easily.

Key Features of Bootstrap

Bootstrap
  • Responsive Grid: 12-column Flexbox grid with multiple breakpoints.
  • Prebuilt Components: Includes modals, tooltips, carousels, navbars, etc.
  • JavaScript Plugins: Native JS components — no jQuery dependency now.
  • Sass Source: Source code in Sass for easy customization.
  • Utility Classes: Tons of helper classes for spacing, colors, displays.
  • Theming Support: Customizable via Sass variables.

Advantages of Bootstrap

  • Fast Setup: Quickly spin up pages with minimal styling needed.
  • Consistency Across Browsers: Ensures uniform UI elements.
  • Large Ecosystem: Thousands of themes, templates, starters available
  • Modular: Easily import only needed components via Sass.
  • Strong Community: Longstanding support and wide adoption.

Disadvantages of Bootstrap

  • Learning Curve: Advanced customization requires more expertise
  • Overuse of Classes: Cluttered HTML, harder to maintain.
  • Heavy File Size: Includes unnecessary CSS/JS, increasing load times.
  • Limited Customization: Hard to deeply customize without overriding defaults.
  • Uniform Design: Sites can look similar unless customized heavily.

Comparison Between Shadcn UI vs Bootstrap

FeaturesShadcn UIBootstrap
PhilosophyPre-built components using Radix + TailwindPre-styled components for fast UI development
Ease of UseBeginner-friendly for React + Tailwind usersVery beginner-friendly
CustomizationTailwind-based customizationLimited; via Sass variables
Design SystemModern design system includedBasic design consistency
ResponsivenessResponsive with Tailwind classesBuilt-in responsive grid
File SizeMedium to large; depends on usageMedium to large without customization
Learning CurveLow to mediumLow
PricingFree and open-sourcFree and open-source
Best ForReact + Tailwind apps needing sleek UIsQuick UIs, admin dashboards, MVPs
Styling MethodTailwind CSSSass, plain CSS
AccessibilityInherits accessibility from RadixBasic, not WCAG-first
Dark ModeBuilt-in with Tailwind configManual implementation
FrameworkReact (Next.js focused)Any (HTML/CSS/JS)
Bundle SizeMedium to large; depends on usageLarge if all components used

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 Bootstrap

  • Projects where consistency outweighs custom design
  • Legacy apps or CMS integration
  • Quick MVPs and prototypes
  • Dashboard templates, admin panels

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.

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Frequently asked questions

What is Shadcn UI?

Is Shadcn UI customizable?

Does Shadcn UI support dark mode?

Is Shadcn UI production-ready?

Does Shadcn UI work with other frameworks like Vue?

Can I use Bootstrap without JavaScript libraries?

Is Bootstrap responsive?

Do I need to know HTML, CSS, and JavaScript to use Bootstrap?

How does Bootstrap help with mobile responsiveness?