When comparing Kendo UI vs w2ui, the Slant community recommends w2ui for most people. In the question“What are the best JavaScript libraries for building a UI?” w2ui is ranked 11th while Kendo UI is ranked 14th. The most important reason people chose w2ui is:
Any component is well documented and have an easy API to access validation, dataloading and handling user events.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Free Core tools
Kendo UI is separated into a commercial and open source frameworks. The core of Kendo UI is in the open source frameworks, but some usability and benefits of Kendo UI are lost without the commercial version.
Pro Platform-based UI
Kendo knows what device it is being viewed on so it can adjust the UI accordingly. If a user is on a PC the user will see things differently than on a mobile device. Between iOS and Android the user will also notice a different as it pulls from the core UI of those core systems.
Pro Theme Builder
An interactive tool that has been created to customize an apps theme. Users are able to select from many pre-defined themes, edit them, and download the theme to bring into a project.
Pro Easy and clean API
Any component is well documented and have an easy API to access validation, dataloading and handling user events.
Pro Lots of components/widgets
Library contains UI components like Datagrids, Forms, Tabs, SideBars, Toolbars and more.
Pro Small library size
Only two files need to be included 1 .css and 1 .js, together they are only 365 kb.
regarding to amount of components it is very small.
Cons
Con Expensive commercial tools [$699, $1,499]
The other core tools developed with Kendo are the commercial tools. There is the Professional version for $699 that will result in more jQuery UI widgets and client support. The $1499 "DevCraft" Complete edition gets developers the DevCraft .NET toolbox, testing and debugging frameworks and applications, as well as priority support.