Fomantic UI is a modern front-end development framework that helps create beautiful, responsive layouts using human-friendly HTML.
Cost / License
- Free
- Open Source
Platforms
- Online
- Self-Hosted




SAAS UI is described as 'Saas UI is a React component library and starterkit that doesn't get in your way and helps you build intuitive SaaS products with speed' and is an website. There are more than 50 alternatives to SAAS UI, not only websites but also apps for a variety of platforms, including Self-Hosted, Mac, Windows and Linux apps. The best SAAS UI alternative is Bootstrap, which is both free and Open Source. Other great sites and apps similar to SAAS UI are Tailwind CSS, Semantic UI, Foundation and UIkit.
Fomantic UI is a modern front-end development framework that helps create beautiful, responsive layouts using human-friendly HTML.




Polymer is a library that uses the latest web technologies to let you create custom HTML elements. Build anything from a button to a complete application as an encapsulated, reusable element that works across desktop and mobile.

Polymer is the most popular Windows, Mac & Linux alternative to SAAS UI.
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 iPhone. Skeleton is built on three core principles:
Chakra UI is a simple, modular and accessible component library that gives you all the building blocks you need to build your React applications.
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.
Front-end framework with a built-in dark mode and full customizability using CSS variables; great for building dashboards and tools.
Stylify is a library that generates utility-first CSS dynamically based on what you write. Write HTML. Get CSS 🚀.




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 for Brackets, Edge Reflow, and feedback from the PhoneGap app developer community.
Eva Design System is a free and open-source, customizable design system. Available for Sketch with Mobile and Web component libraries.



Spectre.css is a lightweight, responsive and modern CSS framework for faster and extensible development.