



FlyonUI is described as 'Is designed to combine the best of both worlds: the aesthetic appeal of semantic classes and the powerful functionality of JS plugins' and is a CSS Framework in the development category. There are more than 25 alternatives to FlyonUI for a variety of platforms, including Web-based, Self-Hosted, Mac, Windows and Linux apps. The best FlyonUI alternative is Bootstrap, which is both free and Open Source. Other great apps like FlyonUI are Bulma, Semantic UI, Foundation and UIkit.




Unpack your meal and get coding. An invasive CSS library to get your style started.
Google's front-end web framework for building sites to the Material Design specification.



Phonon is a front-end framework made with mobile and desktop in mind. It offers clear and neutral components that integrate best practices and ideas coming from well-known design styles.
Phonon Framework is the most popular Android, iPhone, iPad & Android Tablet alternative to FlyonUI.
The 960 Grid System is an effort to streamline web development workflow by providing commonly used dimensions, based on a width of 960 pixels. There are two variants: 12 and 16 columns, which can be used separately or in tandem.
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.
AlloyUI is a framework built on top of YUI3 (JavaScript) that uses Bootstrap (HTML/CSS) to provide a simple API for building high scalable applications.
Webments is a collection of libre frameworks designed with scratch CSS using different design languages.




Create fast loading, highly readable, and 100% responsive interfaces with as little css as possible.

The Syncfusion JavaScript UI controls library is the only suite that you will ever need to build an application since it contains over 60 high-performance, lightweight, modular, and responsive UI components in a single package.



