With Tailwind 4 & OKLCH color support

Extended Features and Components
to build a modern design system

Design, preview, and export production-ready themes in minutes.

Built with modern tools

Tailwind CSS 4
shadcn/ui
React 19
Interactive Demo

Experience Themes Live

Click a theme below to see instant changes across the entire page. This is what your users will experience.

Toggle theme mode:
Theme Builder

Modern and Intuitive
Theme Builder Made Simple

Our advanced theme builder gives you complete control over your design system with real-time previews.

OKLCH Color Picker
Use perceptually uniform colors that look great across all devices and color spaces.
  • Perceptually uniform color selection
  • Better contrast ratios automatically
  • Wide gamut display support
Real-time Preview
See your changes instantly across all UI components and patterns.
  • Live component previews
  • Light and dark mode switching
  • Responsive design testing
Export Anywhere
Export your themes in multiple formats for seamless integration.
  • CSS variables for easy integration
  • JSON theme configuration
  • Ready-to-use shadcn/ui code
Pre-built Themes
Start with professionally designed themes and customize from there.
  • Curated theme collection
  • One-click theme switching
  • Customize any preset
Coming Soon

What's Next

We're constantly improving and adding new features to make theme creation even better.

shadcn-extnd Components
Extended component library with advanced patterns, animations, and interactive elements built on shadcn/ui.
Animation Presets
Beautiful pre-configured animations and transitions that work seamlessly with your themes.
Component Registry
Browse and install community-created components and themes directly from the builder.
Open Source
Access the full source code on GitHub to contribute, customize, and extend the project.
Get Started

Ready to Build Beautiful Themes?

Join developers and designers creating stunning design systems with Extnd. Start building your perfect theme today.

Built with modern tools

Tailwind CSS 4
shadcn/ui
React 19