Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- Self-Hosted


Foundation is described as 'Responsive framework with semantic, mobile-first design, offering HTML, CSS, JS resources for sites and emails, crafted by Zurb for accessibility' and is a CSS Framework in the development category. There are more than 50 alternatives to Foundation for a variety of platforms, including Web-based, Self-Hosted, Mac, Windows and Linux apps. The best Foundation alternative is Bootstrap, which is both free and Open Source. Other great apps like Foundation are Tailwind CSS, Bulma, Semantic UI and Material UI.


Juiced has many of the same layout features that you know and love, but improves upon them with better mobile targeting, custom column ordering, better alignment options, understandable HTML, and less boilerplate styles.
Webments is a collection of libre frameworks designed with scratch CSS using different design languages.




inuit.css is a lightweight, constantly updated CSS framework which provides you with a pragmatic and feature-rich starting point for all your projects.
Little Widgets is a collection of beautifully designed HTML website widgets and popups. It’s coded, responsive, animated and ready to use on your website.






Simple. Robust. Responsive. Flexible.
Based on Flexbox (CSS Flexible Box Layout Module), Gridlex is a very simple css grid system to quickly create modern layouts and submodules.





The Goldilocks Approach to Responsive Web Design - A good starting point for design that takes device resolution out of the equation.