HTML vs XML
Differences, use cases, and when to use each
HTML is a markup language for creating web pages with a fixed set of elements and browser rendering rules. XML is a general-purpose markup language for storing and transporting data with user-defined elements and no rendering semantics.
Quick Comparison
| Feature | HTML | XML |
|---|---|---|
| Elements | Fixed tags (div, p, img, etc.) | Any user-defined tags |
| Purpose | Document presentation and structure | Data storage and transport |
| Rendering | Rendered by browsers | No built-in rendering |
| Error Tolerance | Forgiving (browsers recover) | Strict (errors fail parsing) |
| Schema | HTML specification | XSD, DTD (user-defined) |
When to Use Each
When to Use HTML
Use HTML for web pages, email templates, and any document meant to be rendered and displayed in browsers with interactive elements.
When to Use XML
Use XML for data interchange, configuration, and any context where you need self-describing data with custom element names and strict schema validation.
Pros & Cons
HTML
XML
Verdict
HTML for web content presentation; XML for structured data storage and interchange. HTML is essentially a browser-specific vocabulary built on XML principles, but they serve different purposes.