AjaxAC is an Open Source PHP Framework, used to develop/create/generate AJAX applications. The fundamental idea behind AJAX (Asynchronous JavaScript And XML) is to use the XMLHttpRequest object to change a web page state using background HTTP sub-requests without reloading the entire page.

Features of AjaxAC:
- The basic idea behind AjaxAC is that you create an AjaxAC application, which in itself contains a number of action handlers and event handlers.
- An application in this context might mean an entire web site powered by AJAX, or it could mean a subset of a form .
- All application code is self-contained in a single class (plus any additional JavaScript libraries)
- Calling PHP file / HTML page is very clean. All that is required is creating of the application class, then referencing the application JavaScript and attaching any required HTML elements to the application.
- Built in functionality for easily handling JavaScript events