CSS Frameworks

Tailwind CSS: Low level, utility-first framework.

Bootstrap: Powerful, extensible, and feature-packed frontend toolkit. Build and customize with Sass, utilize prebuilt grid system and components, and bring projects to life with powerful JavaScript plugins.

Materialize is a modern responsive front-end framework based on Material Design.

Material Design Lite: Light framework based on Material Design. No JS dependency.

Bulma is modern CSS framework with no JS.

Skeleton: Extremely light framework for basic UI elements.

Uniform CSS: Fully configurable utility generator and CSS framework built entirely in Sass.

Semantic UI: Empowers designers and developers by creating a shared vocabulary for UI.

Fomantic UI is a community fork of Semantic-UI.

for Sites is jam-packed with features to help people rapidly build content-focused websites. Foundation for Sites provides you with HTML, CSS, & JavaScript to help you quickly prototype. It's easy to customize & extend to get your project polished & shipped.

Pure CSS is a set of small, responsive CSS modules.

UIKit: Lightweight and modular front-end framework.

Susy: Lightweight, grid-layout engine for Sass.

Milligram.io: Minimalist CSS framework.

Vanilla Framework: Simple, extensible CSS framework written in Sass.

Spectre CSS: Lightweight, modern CSS framework.

Picnic CSS: Lightweight and beautiful library.

Wing is a beautiful CSS framework designed for minimalists.

Chota: All you need is 1 CSS file, chota.css to be included in your webpage.

Blueprint CSS is a lightweight layout library for building great responsive mobile first UIs that work everywhere.

W3.CSS: Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

98.css is a design system for building faithful recreations of old UIs.

NES CSS: NES.css is a NES-style CSS Framework.

Shoelace.css: Lightweight, forward-thinking CSS library built with future CSS syntax.

MVP.css: - No classes, no framework. Just semantic HTML and you.

Blaze.css: Open source modular CSS toolkit providing great structure for building websites quickly.

Turret CSS: is a styles framework for development of responsive websites.

Cutestrap is a strong, independent CSS Framework.

XP.css is a design system for building faithful recreations of old UIs.

Framework7 helps you build full featured iOS, Android & Desktop apps.

Hint.css is a pure CSS tooltip library for your lovely websites.

imagehover.io: Pure CSS Image Hover Effect Library.

mini.css is a minimal, responsive, style-agnostic CSS framework.

Tachyons helps you create fast loading, highly readable, and 100% responsive interfaces with as little css as possible.

Material Bootstrap: Material Design with Bootstrap.

Ivory is modern and powerful CSS framework, prebuilt with grid system, elegant design and flexible components helps you to develop powerful interfaces faster and easier. - IVORY-UI/ivory.

Halfmoon UI: Halfmoon is a highly customizable, drop-in Bootstrap replacement. It comes with three built-in core themes, with dark mode support for all themes and components. Build beautiful and responsive websites and applications.

Metro 4 helps you create your site quickly and effectively with Metro 4. impressive components library built on html, css, javascript.

css-doodle is a web component for drawing patterns with CSS.

latex.css: Make your website look like a LaTeX document.

Paper CSS: Front-end printing solution.

Windi CSS: Next generation compiler for Tailwind CSS.

Cirrus CSS is a component and utility centric SCSS framework designed for rapid prototyping.

Gutenberg is modern framework to print the web correctly.

World's smallest responsive 🔥 css framework (395 bytes) - GitHub - ajusa/lit: World's smallest responsive 🔥 css framework (395 bytes).

Arwes: is a web framework to build user interfaces based on futuristic science fiction designs, animations, and sound effects.

Bojler: is an email framework for developing responsive and lightweight email templates that will render correctly across each of the most popular email clients.

Tacit: Primitive CSS Framework for dummies, without classes.

Terminal CSS is a modern and minimal CSS framework for terminal lovers.

Sakura is a minimal classless css framework / theme.

DAUB: Considered CSS component library — 73 components, 20 theme families, classless mode, AI-ready with llms.txt and MCP server. Zero build step.

PSone: PS1 style CSS Framework, inspired by NES.css.

Marx: is the classless CSS reset to be used in any projects (namely small ones).

Style your webpage like Edward Tufte’s handouts.

Axentix: Framework mixing fully customizable components & utility-first classes, leaving the design choice to the developer.

Raster Simple Grid System: Minimal and straight-forward CSS grid system utilizing descriptive HTML rather than semantic CSS.

flowrift: is a library made of beautifully designed Tailwind CSS UI blocks.

twind is the smallest, fastest, most feature complete tailwind-in-js solution in existence.

Pico.css: Elegant styles for all natives HTML elements without .classes and dark mode automatically enabled.

clay.css: Extensible and configurable micro CSS util class and SASS mixin for adding claymorphism styles to your components.

BeerCSS is the first CSS framework based on Material Design 3. Latest M3 Expressive already. 10x smaller than others CSS frameworks based on Material Design. Translates Material Design to HTML semantic standard. Ready to use with any JS framework. Highly focused on DX. No build steps, configurations or dependencies. Build modern interfaces without any custom CSS.

UnoCSS is the instant on-demand Atomic CSS engine.

StyleX is the styling system that powers Meta.

💫 Orbit is a framework designed for building any kind of radial UI. - zumerlab/orbit.