What is web application?

Web application, or webapp, in software engineering is an application which is accessed via Web over a network, like an intranet or the Internet. Also, it is a computer software application that has been coded in a browser-supported language (like ASP, HTML, Perl, PHP, etc.). It is reliant on a common web browser to enable the application to become executable.

Because of the ubiquity of a client, web applications have become very popular, sometimes they are called “a thin client”. One other key reason for their popularity is the ability to update and maintain the Web applications without the need to distribute and install software on potentially thousands of client computers. Some of the most common Web applications are Webmail, online auctions, online retail sales, discussion boards, wikis, MMORPGs, Weblogs, and many other functions.