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.
Cost / License
- Free
- Open Source
Platforms
- Online
- JavaScript
Apps similar to Kendo UI include Semantic UI, which is free and open source. Other options are Material UI, UIkit, Ext JS and jQuery UI. You're spoiled for choice with CSS Frameworks like Kendo UI: we list more than 25 alternatives for the web, self-hosting, Windows, Mac and Linux.
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.
Design and build complex Web Applications directly in Visual Studio using C# or VB.NET and a rich library of components.




Prime UI is the missing foundation for AI-generated websites. Go from sitemaps and wireframes to production-ready Next.js and Tailwind CSS code in minutes. Built for consistent results. No prompt engineering required.




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.




Material Me is a web-optimized design system with 3000+ variants for 39 components and 350+ ready-to-use app layouts crafted for Figma.

Pixel Lite Bootstrap 4 UI Kit is a beautifully crafted UI Kit based on Bootstrap 4 Components. This theme was built following Bootstrap's methodologies by the heart. It has 100 components, 3 plugins and 3 example pages.




Customizable Angular UI Library based on Eva Design System with 40+ UI components, 4 visual themes, Auth and Security modules.
