Web development is all that is involved in building a website. Typically, it refers to the coding and programming side of website production as opposed to the web design side. It encompasses everything from a simple page of HTML text to complex, feature-rich applications designed to be accessed from a variety of internet-connected devices.

Examples of feature-rich web development include e-commerce websites, content management systems (CMS), and social media. Common web development programming languages ​​and software include Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), JavaScript, PHP, Drupal, and MySQL.