Gabo's Awesome CSS Frameworks and UI Libraries

An extensive list of Awesome CSS Frameworks and UI Libraries based on Awesome CSS Frameworks.

The Big Ones

Frameworks with more than ~20K GitHub Stars.

Bootstrap - Official Site

The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web. Bootstrap is an open source toolkit for developing with HTML, CSS, and JS. Quickly prototype your ideas or build your entire app with our Sass variables and mixins, responsive grid system, extensive prebuilt components, and powerful plugins built on jQuery.

Ant Design - Official Site

An enterprise-class UI design language and React UI library.

Material-UI / MUI Core - Official Site

React components for faster and easier web development. Build your own design system, or start with Material Design.

Tailwind CSS - Official Site

A Utility-First CSS Framework for Rapid UI Development. Tailwind is different from frameworks like Bootstrap, Foundation, or Bulma in that it's not a UI kit. It doesn't have a default theme, and there are no built-in UI components. On the flip side, it also has no opinion about how your site should look and doesn't impose design decisions that you have to fight to undo. If you're looking for a framework that comes with a menu of predesigned widgets to build your site with, Tailwind might not be the right framework for you. But if you want a huge head start implementing a custom design with its own identity, Tailwind might be just what you're looking for.

Semantic UI - Official Site

Semantic is a UI component framework based around useful principles from natural language. Semantic allows developers to build beautiful websites fast, with concise HTML, intuitive javascript, and simplified debugging, helping make front-end development a delightful experience. Semantic is responsively designed allowing your website to scale on multiple devices. Semantic is production ready and partnered with frameworks such as React, Angular, Meteor, and Ember, which means you can integrate it with any of these frameworks to organize your UI layer alongside your application logic.

normalize.css - Official Site

A modern, HTML5-ready alternative to CSS resets. Normalize.css makes browsers render all elements more consistently and in line with modern standards. It precisely targets only the styles that need normalizing.

Bulma - Official Site

Bulma is a free and open source CSS framework based on Flexbox. It's 100% Responsive (Designed for mobile first), Modular (Just import what you need) and Modern (Built with Flexbox).

Materialize Original - Official Site

Materialize, a CSS Framework based on Material Design.

Material Design Lite - Official Site

Material Design Lite lets you add a Material Design look and feel to your websites. It doesn’t rely on any JavaScript frameworks and aims to optimize for cross-device use, gracefully degrade in older browsers, and offer an experience that is immediately accessible. Material Design Lite is now in limited support, with development having moved to the Material Components for the web repository.

Foundation - Official Site

Foundation is the most advanced responsive front-end framework in the world. Quickly go from prototype to production, building sites or apps that work on any kind of device with Foundation. Includes a fully customizable, responsive grid, a large library of Sass mixins, commonly used JavaScript plugins, and full accessibility support.