The framework is implemented using a component library. The library set Ajax functionality into existing pages, so there is no need to write any JavaScript code or to replace existing components with new Ajax one. Ajax4jsf enables page-wide Ajax support instead of the traditional component-wide support and it gives the opportunity to define the event on the page. An event invokes an Ajax request and areas of the page which are synchronized with the JSF Component Tree after changing the data on the server by Ajax request in accordance with events fired on the client.

Component Development Kit (CDK) is a design-time extension for Ajax4jsf. The CDK includes a code-generation facility and a templating facility using a JSP-like syntax. These capabilities help to avoid a routine process of a component creation. The component factory works like a well-oiled machine allowing the creation of first-class rich components with built-in Ajax functionality even more easily than the creation of simpler components by means of the traditional coding approach.

Ajax4jsf provides a skinnability feature that allows easily define and manage different color schemes and other parameters of the UI with the help of named skin parameters. Hence it is possible to access the skin parameters from JSP code and the Java code (e.g. to adjust generated on-the-fly images based on the text parts of the UI). Note: skinnability is not an equivalent of traditional CSS, but a complement.