Bootstrap Bootstrap is a open-source collection of tools for creating browser sites and applications. It contains HTML and CSS-based design templates for typography, forms... Free Open Source Self-Hosted HTML5 Boilerplate JavaScript Responsive design Add a feature 190 Like
Foundation Foundation is an easy to use, powerful, and flexible framework for building rapid prototypes and production code on any kind of device. Free Open Source Web No features added Add a feature 41 Like
Semantic UI Semantic empowers designers and developers by creating a shared vocabulary for UI. Free Open Source Web No features added Add a feature 35 Like
Materialize Materialize is a modern responsive CSS framework based on Material Design by Google Free Open Source Web Material design Responsive design Add a feature 25 Like
UIKit A lightweight and modular front-end framework for developing fast and powerful web interfaces. ui framework full HTML / CSS, javascript component , form, theme ... Free Open Source Web No features added Add a feature 27 Like
Skeleton Skeleton is a small collection of CSS & JS files that can help you rapidly develop sites that look beautiful at any size, be it a 17" laptop screen or an... Free Open Source Web No features added Add a feature 20 Like
HTML5 Boilerplate A rock-solid default for HTML5 awesome. HTML5 Boilerplate is the professional badass's base HTML/CSS/JS template for a fast, robust and future-proof site. After... Free Open Source Web No features added Add a feature 20 Like
Purecss A set of small, responsive CSS modules that you can use in every web project. Free Open Source Web No features added Add a feature 11 Like
Metro UI CSS Metro UI CSS a set of styles to create a site with an interface similar to Windows 8. Free Open Source Web LESS jQuery Responsive design Add a feature 11 Like
Spectre.css Lightweight, responsive and modern CSS framework for faster and extensible development. Free Open Source Web Self-Hosted Responsive design Add a feature 5 Like
GroundworkCSS GroundworkCSS is a 100% free and open source responsive HTML5, CSS and JavaScript Framework. Free Open Source Web Self-Hosted No features added Add a feature 6 Like
metro-bootstrap Simple bootstrap from Twitter with Metro style. Free Open Source Web Bootstrap Responsive design Add a feature 6 Like
Material Design Lite Google's front-end web framework for building sites to the Material Design specification. Free Open Source Web GitHub Responsive design Add a feature 3 Like
Flat UI Pro Flat UI Pro is made on the basis of Twitter Bootstrap in a stunning flat-style, and the kit also includes a PSD version for designers. Flat UI Pro contains a huge number... Commercial Web No features added Add a feature 7 Like
Topcoat Topcoat is a brand new open source CSS library designed to help developers build web apps with an emphasis on speed. It evolved from the Adobe design language developed... Free Open Source Mac OS X Windows Linux Web Support for Themes Add a feature 3 Like
