What Is the XML Formatter?
Format and prettify XML documents with proper indentation, syntax highlighting, and validation. Collapse or expand nodes for easier navigation.
Why Use This Tool?
Raw XML from APIs, config files, or data exports is often minified or poorly formatted. This tool adds proper indentation and structure so you can read and debug XML documents quickly.
How to Use This XML Formatter
- Paste your XML — Enter raw, minified, or messy XML into the input area.
- Click Format — The tool parses the XML tree and outputs it with proper indentation, line breaks, and consistent attribute formatting.
- Set indentation — Choose 2-space, 4-space, or tab indentation to match your project conventions.
- Copy the result — Click Copy to grab the formatted XML for your configuration files, SOAP responses, or data documents.
Tips and Best Practices
- → Format before debugging. Minified or poorly indented XML is nearly impossible to read. Always format first, then diagnose issues.
- → Validate after formatting. A formatter makes XML readable, but it doesn't guarantee validity. Use an XML validator to check for well-formedness and schema compliance.
- → XML is case-sensitive. Unlike HTML, XML tag names are case-sensitive.
<Name> and <name> are different elements.
- → Use CDATA for embedded content. Wrap content containing special characters (like HTML or code snippets) in
<![CDATA[ ... ]]> to avoid escaping issues.
Frequently Asked Questions
Does it validate XML syntax?
Yes. The formatter detects and highlights syntax errors like unclosed tags, mismatched tag names, and invalid characters. It shows the error location and a description.
Can I minify XML?
Yes. Toggle between beautified (indented) and minified (compact) output. Minified XML removes all unnecessary whitespace.
How does it handle CDATA sections?
CDATA sections are preserved exactly as-is. Their content is not reformatted since CDATA is intended to contain raw, unprocessed text.
Can it handle very large XML files?
The tool processes XML in the browser, so very large files (10MB+) may be slow. For production-scale XML processing, use command-line tools like xmllint or specialized XML editors.
Does it support XML namespaces?
Yes. Namespace prefixes and declarations are preserved exactly as written. The formatter only adjusts whitespace and indentation, never modifying element names or attributes.
What is XML formatting?+
XML formatting (also called XML pretty-printing) adds proper indentation, line breaks, and whitespace to an XML document to make its hierarchical structure visible and readable. The formatted output is semantically identical to the original — only whitespace changes.
What is the difference between XML and JSON?+
XML uses opening and closing tags with attributes, supports namespaces and schemas, and is common in enterprise systems and SOAP APIs. JSON uses key-value pairs with braces and brackets, is lighter-weight, and dominates modern web APIs. JSON is typically smaller and faster to parse; XML is more rigidly structured and validatable.
Is XML still used in 2026?+
Yes, XML remains widely used for configuration files (Maven pom.xml, Android manifests), document formats (DOCX, SVG, RSS), SOAP web services, data interchange in enterprise systems, and industry standards like HL7 (healthcare) and XBRL (finance). While JSON dominates web APIs, XML is far from obsolete.
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