CSE HTML Validator is an application which allows users to validate and create correct HTML, XHTML and CSS documents. HTML stands for Hypertext Markup Language. XHTML stands for Extensible HyperText Markup Language. CSS is the abbreviation for Cascading Style Sheets. These three elements are the building blocks of all websites. If any of these are done incorrectly, it will cause the websites to not open on certain browsers, both web and mobile.
CSE HTML Validator has an intuitive interface. There are several functions on the menu bar including File, Edit, Search, View, Tags, Tool, Validate, Options, and Help. There are toolbars on both the upper side as well as the left side of the main interface for the frequently used commands. The main window has two tabs: Editor and Browser. The Editor contains the codes for the websites while the Browser allows the users to visualize the website while it is being worked on. On the bottom section are tabbed areas for Message, Line, Grouped, Accessibility, Styles, Links, Structure and Scratch. The Message tab displays errors, warnings and comments for each of the lines of the codes. On the right side is a message window where the actual error is written.