XML Formatter
Format and validate XML documents with proper structure and indentation.
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About XML Formatter
XML (eXtensible Markup Language) is used for storing and transporting data. Format your XML with proper indentation for better readability.
Common Use Cases:
- Formatting XML configuration files
- Validating XML structure
- Preparing XML for documentation
- Debugging XML parsing issues
Frequently Asked Questions
XML (eXtensible Markup Language) remains widely used in enterprise software, configuration files, web services (SOAP APIs), Microsoft Office formats (.docx, .xlsx are ZIP files containing XML), RSS/Atom feeds, SVG graphics, and data interchange in industries like healthcare (HL7), finance (FpML), and government. While JSON has become more popular for REST APIs, XML is still the standard in many established systems.
The most common errors are: unclosed tags (every opening <tag> must have a matching </tag>), incorrectly nested tags, unescaped special characters (use & for &, < for <, > for >), missing XML declaration, and attribute values not enclosed in quotes. Our validator identifies the exact location of syntax errors.
HTML is a specific markup language for web pages with predefined tags. XML is a general-purpose markup framework where you define your own tags for any purpose. HTML browsers are forgiving of syntax errors; XML parsers are strict — a single missing closing tag breaks the entire document. HTML is for presentation; XML is for data structure and transport.