Generalist UI Libraries

A Virtual CSS language with enhanced syntax. Efficiently build your UI and design system with HTML only.

Beautiful, fast and modern React UI Library. Make beautiful websites regardless of your design experience.

Create tooltips, popovers, dropdowns, and more. A JavaScript library to position floating elements and create interactions for them.

Start building your app now. An open source component library optimized for fast development, easy maintenance, and accessibility. Just import and go—no configuration required.

A simple, modular and accessible component library that gives you the building blocks you need to build your React applications. Built with Styled System

Marko is a friendly (and fast!) UI library that makes building web apps fun. It's like HTML and JS had a perfect baby that grew up to be awesome

A design system for building faithful recreations of old UIs.

CSS library for building interfaces that resemble Apple's System OS which ran from 1984-1991.

Shoelace provides a collection of professionally designed, every day UI components built on a framework-agnostic technology.

Hilla is a modern framework for Java that integrates a Spring Boot Java backend with a reactive TypeScript frontend. It includes all the UI components and tools you need so you can focus on building your app.

Simple. Fast. Web Components. Lit is a simple library for building fast, lightweight web components. At Lit's core is a boilerplate-killing component base class that provides reactive state, scoped styles, and a declarative template system that's tiny, fast and expressive.

Materialize is a modern responsive CSS framework based on Material Design by Google.

Completely unstyled, fully accessible UI components, designed to integrate beautifully with Tailwind CSS.

Bourbon is a library of pure Sass mixins and functions that are designed to make you a more efficient style sheet author.

A design element gallery for web designers and web developers. Find snippets using HTML, CSS, Javascript, jQuery, and Bootstrap.

The world’s most popular front-end open source toolkit, featuring Sass variables and mixins, responsive grid system, extensive prebuilt components, and powerful JavaScript plugins.

Pixel perfect mobile UI components built with Tailwind CSS With iOS and Material Design components for React, Vue & Svelte

MUI provides a robust, customizable, and accessible library of foundational and advanced components, enabling you to build your design system and develop React applications faster.

An enterprise-class UI design language and React UI library with a set of high-quality React components, one of best React UI library for enterprises

Our purpose is to allow web developers to style and extend built-in web UI controls, such as dropdowns, checkboxes, radio buttons, and date/color pickers.

Free themes for Bootstrap.