In Digital World, a Web Application Development is a client–server software application in which the client (or user interface) runs in a web browser. Common web application include email, online retail sales, online auctions, wikis, instant messaging services and many other functions.
Web Application Development is the creation of application programs that reside on remote servers and are delivered to the user's device over the Internet.
They work in a variety of organizations of any size, and some work as independent freelancers. The creation of a Web Application usually involves one or more Developers.