Bootstrap

Bootstrap

Bootstrap is a free and open-source front-end framework for developing with HTML, CSS, and JavaScript. A major goal of the project is to offer a set of tools that can help kickstart development of web projects.

Bootstrap Alternatives

Bulma CSS

Bulma CSS

bulma.io

Bulma is a modern CSS framework based on Flexbox. It's lightweight, built with performance in mind and packed with goodies like font icons, tons of useful components and extensible styling.

Materialize

Materialize

materializecss.com

Materialize CSS is a modern responsive front-end framework based on Material Design. It offers an incredibly small resource footprint, quick to parse, optimized for cross-device use and accessible to screen readers.

Semantic UI

Semantic UI

semantic-ui.com

Semantic is an elegant, semantic grid system for creating adaptive layouts for desktop and mobile web apps. It helps you build sites faster with flexible, fluid, and responsive HTML.

Foundation

Foundation

get.foundation

Foundation is an advanced responsive front-end framework for creating sites, apps and emails that look beautiful at any size, from mobile to desktop. It’s a highly semantic, flexible grid system that enables uniform responsive design for every device.

Tailwind CSS

Tailwind CSS

tailwindcss.com

Build any design with a utility-first CSS framework. Tailwind is packed with classes like flex, pt-4, text-center and rotate-90 that can be composed to build any design. You'll never have to write another CSS selector ever again!

UIkit

UIkit

getuikit.com

UIkit is a lightweight and modular front-end framework for developing fast and powerful web interfaces. It helps you with all the little things that make your website or project look sharp, feel modern, and function intuitively. UIkit gives your website a distinct style, making it recognizable as yours.

Pure CSS

Pure CSS

purecss.io

Pure is a set of small, responsive CSS modules that you can use in every web project. All code is written with mobile devices in mind and built on top of Normalize.css, a comprehensive foundation for typography, tables, lists, forms, and other basic elements.

Milligram CSS

Milligram CSS

milligram.io

Milligram is a minimal CSS framework that provides a fast and clean starting point for all your projects. Just add classes and build upon it. It support grids, typography, consistent colors and more, specially designed in order to let you focus on things that actually matter.

Spectre CSS

Spectre CSS

picturepan2.github.io

Spectre is a lightweight, responsive and modern CSS framework for faster and extensible development. It offers many features, including selectors with chaining ability, flexbox based grid system, pure CSS components and utilities, code-reuse via mixins and more.

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