A web application is an application that is accessed over a network such as the Internet or an intranet. Web applications rely on a common web browser to render the application executable. Common web applications include webmail online retail sales online auctions and many other functions.
Web applications are popular due to the compatibility of web browsers. With this it is easy to update and maintain web applications without distributing and installing software on potentially thousands of client computers is a developers are skilled to handle all types of web application project.