The mobile web refers to browser-based Internet services accessed from handheld mobile devices, such as smartphones or feature phones, through a mobile or other wireless network. Standards improve the interoperability, usability, and accessibility of mobile web usage.

The Mobile Web Initiative (MWI) was set up by the W3C to develop the best practices and technologies relevant to the mobile web. The goal of the initiative is to make browsing the web from mobile devices more reliable and accessible. The main aim is to evolve standards of data formats from Internet providers that are tailored to the specifications of particular mobile devices. The mobile web primarily utilizes lightweight pages like this one written in Extensible Hypertext Markup Language (XHTML) or Wireless Markup Language (WML) to deliver content to mobile devices. Many new mobile browsers are moving beyond these limits by supporting a wider range of Web formats, including variants of HTML commonly found on the desktop web.