Cost / License
- Free
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux
- Online
- BSD
Skeleton is described as '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 iPhone. Skeleton is built on three core principles:' and is a CSS Framework in the development category. There are more than 50 alternatives to Skeleton, not only websites but also apps for a variety of platforms, including Self-Hosted, Mac, Windows and Linux apps. The best Skeleton alternative is Bootstrap, which is both free and Open Source. Other great sites and apps similar to Skeleton are Tailwind CSS, Bulma, Semantic UI and Foundation.
Unsemantic is a fluid grid system that is the successor to the 960 Grid System. It works in a similar way, but instead of being a set number of columns, it's entirely based on percentages.


Material Bread is a Material component library for React and React Native covering mobile, desktop platforms and the web. Featuring full documentation with storybook for easy code samples and a robust set of...


Wee is an extensible front-end web development framework for building responsive websites using Less CSS paired with a powerful JavaScript library.
MWF is a system that allows site authors to consider how best to tell the story of Microsoft products and services with confidence that the modular pieces will support and work together.
Create fast loading, highly readable, and 100% responsive interfaces with as little css as possible.

Free framework offering 400+ UI elements, 600+ icons, numerous CSS animations, responsive design, SASS files, customizable templates, comprehensive tutorials, active community, detailed documentation, and support for jQuery, Angular, React, and Vue.




Build your website interface using a responsive CSS framework with various components and with integrated dynamic functionalities.
Free for non-commercial purposes.



This is the Responsive Grid System, a quick, easy and flexible way to create a responsive web site.