XPath is a query language used to search for and locate elements in XML and HTML documents. It is a syntax or language that makes finding elements on a webpage possible using XML path expression. XPath in Selenium is used to navigate through the HTML structure of a webpage and is a powerful method for finding and interacting with elements within a web pages HTML structure. It allows testers to precisely locate elements within both HTML and XML documents, leveraging the HTML DOM structure. XPath can be used to locate any element on a page based on its tag name, ID, CSS class, and so on. There are two types of XPath in Selenium: Absolute XPath and Relative XPath. Absolute XPath is the simplest form of XPath in Selenium, and it starts with a single slash ‘/’ and provides the absolute path of an element in the entire DOM. XPath provides an option to search for an element within a web page dynamically, thus giving sufficient flexibility to tweak a locator to one’s advantage. XPath in Selenium provides many essential XPath functions and axes to write effective XPaths of the web elements and define unique locators. XPath is typically the easiest way to get started with locators in Selenium, and it is also the preferred locator for inspecting elements on a page.