Cost / License
- Free
- Open Source
Application type
Platforms
- Online
Sites and apps similar to Flat UI Pro include Bootstrap, which is free and open source. Other options are Tailwind CSS, Semantic UI, Material UI and UIkit. You're spoiled for choice with CSS Frameworks like Flat UI Pro: we list more than 50 alternatives for self-hosting, Mac, Windows, Linux and Android.
Webments is a collection of libre frameworks designed with scratch CSS using different design languages.




The Fluid 960 Grid System templates have been built upon the work of Nathan Smith and his 960 Grid System using effects from the MooTools and jQuery JavaScript libraries. The idea for building these templates was inspired by Andy Clarke, author of Transcending CSS, who advocates...
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.
Wee is an extensible front-end web development framework for building responsive websites using Less CSS paired with a powerful JavaScript library.
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...


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.
Slides is a simple and powerful HTML and CSS framework that lets you easily build beautiful static websites thanks to a flexible modular setup.




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.



