Pure CSS

SvelteKit is the official application framework for Svelte, a radical new approach to building user interfaces. SvelteKit provides a structure for building web applications with Svelte, handling routing, server-side rendering, and more. It offers features like code-splitting, offline support, and prefetching out of the box. SvelteKit is designed to make it easy to build both simple and complex applications, with a focus on performance and developer experience.

shadcn/ui is a collection of re-usable components built using Radix UI and Tailwind CSS. It's not a component library in the traditional sense, but rather a set of beautifully designed, accessible components that developers can copy and paste into their projects. This approach allows for maximum customization and integration with existing codebases. shadcn/ui is particularly popular among developers who want high-quality, customizable components without the overhead of a full UI framework.

A rich set of open-source UI Components for Vue.js.

Materialize CSS is a modern responsive CSS framework based on Google's Material Design principles. It provides a set of pre-styled components and interactive elements that help developers create consistent, attractive, and functional web interfaces quickly. Materialize CSS is known for its ease of use, extensive documentation, and Material Design aesthetics. It includes features like a responsive grid system, animations, and JavaScript plugins for common UI interactions.

Radix UI is a low-level UI component library for building high-quality, accessible design systems and web applications. It provides a set of unstyled, accessible components that can be easily customized to fit any design aesthetic. Radix UI focuses on complex UI components like dropdowns, tooltips, and modals, handling the difficult parts of accessibility and keyboard navigation. This makes it an excellent choice for developers who want full control over styling while ensuring their components meet accessibility standards.