Web development is the process of creating and maintaining websites and web applications. It involves a variety of elements, such as web design, content management, server-side scripting, client-side scripting, e-commerce development, and search engine optimization.

Web development can also encompass other tasks such as creating web content, setting up web servers, and configuring security settings. Web developers use various programming languages and software applications to create websites and web applications.

Web development is the work involved in developing a website for the internet or an intranet. Web development can range from developing a simple single static page of plain text to complex web-based internet applications, electronic businesses, and social network services.

A more comprehensive list of tasks to which web development commonly refers, may include web engineering, web design, web content development, client liaison, client-side/server-side scripting, web server and network security configuration, and e-commerce development.

The basic tools involved in web development are programming languages called HTML (Hypertext Markup Language), CSS (Cascading Style Sheets), and JavaScript.