XML Formatter & Validator

Format, prettify, minify, and validate XML data. Make your XML human-readable or compress it for production.

Input
Paste your XML here
Output
Formatted XML

What is XML?

XML (eXtensible Markup Language) is a markup language designed to store and transport data. Unlike HTML, XML is designed to carry data, not to display data. XML tags are not predefined—you must define your own tags.

Why Format XML?

Formatting XML makes it easier to:

  • Read and understand complex nested structures
  • Debug configuration files and data
  • Validate XML structure and syntax
  • Share with team members in a readable format

Features of This Tool

Format/Prettify

Converts minified XML into a human-readable format with proper indentation and line breaks.

Minify

Removes all unnecessary whitespace to reduce file size, perfect for production use.

Validate

Checks if your XML is well-formed and identifies syntax errors.

XML Syntax Rules

  • XML documents must have a root element
  • XML elements must have a closing tag
  • XML tags are case-sensitive
  • XML elements must be properly nested
  • XML attribute values must be quoted
  • Comments are written with <!-- -->

Common Use Cases

  • Configuration files (web.config, app.config)
  • Data exchange between systems
  • RSS feeds and SOAP web services
  • Office document formats (DOCX, XLSX)
  • Android layouts and resources

Example

Minified:

<?xml version="1.0"?><note><to>John</to><from>Jane</from><message>Hello!</message></note>

Formatted:

<?xml version="1.0"?>
<note>
  <to>John</to>
  <from>Jane</from>
  <message>Hello!</message>
</note>