XML Editor & Converter

What is XML?

XML (eXtensible Markup Language) is a flexible, text-based format for storing and transporting structured data. Unlike HTML, XML tags are not predefined — you define your own to describe your data.

• Element — the basic unit, e.g. <name>Alice</name>
• Attribute — metadata on an element, e.g. id="1"
• Prolog — optional XML declaration at the top: <?xml version="1.0"?>

<?xml version="1.0" encoding="UTF-8"?>
<users>
  <user id="1" active="true">
    <name>Alice</name>
    <email>alice@example.com</email>
  </user>
</users>

XML vs JSON

Both XML and JSON are used to exchange data between systems. XML predates JSON and is still dominant in enterprise systems, SOAP services, Office file formats, and RSS/Atom feeds.

• XML supports attributes, namespaces, and comments
• XML has built-in schema validation via XSD and DTD
• JSON is more compact and easier to work with in JavaScript
• XML is better for document-centric data with mixed content

Tool Features

• Beautify — re-indents XML with 2-space indentation and preserves the XML declaration
• Minify — strips all whitespace and collapses self-closing tags
• Tree View — explore elements, attributes, and text nodes as a collapsible tree; nodes deeper than 2 levels start collapsed
• Validation — uses the browser's native DOMParser to detect well-formedness errors instantly
• Status bar — shows root element name, element count, attribute count, and document size