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Difference between HTML and XML

Full formHypertext Markup LanguageeXtensible Markup Language
PurposeDesigned for structuring and presenting content on the webDesigned as a general-purpose markup language for representing structured data
TagsContains predefined tags that define the structure and presentation of web contentDoes not have predefined tags and allows for the creation of custom tags
Document TypeHTML documents have a specific predefined structureXML documents have a flexible structure defined by the user or a document type definition (DTD)
Data ValidationDoes not typically perform strict data validationCan perform strict data validation using DTD or XML Schema
ExtensibilityLimited extensibility, primarily designed for web contentHighly extensible and customizable, suitable for various data representation needs
Presentation FocusFocuses on the visual presentation and layout of contentFocuses on the structure and organization of data
Data InterchangeNot primarily intended for data interchange, but can be used for simple data exchangeWell-suited for data interchange between different systems and platforms
SemanticsHTML tags have predefined meanings and semantic rolesXML does not inherently define semantic meanings for tags
Browser RenderingRendered by web browsers to display web pages visuallyNot rendered directly by web browsers; requires additional processing for visualization
PopularityWidely used for building web pages and web applicationsUsed for a variety of purposes including data exchange, configuration files, and data representation