Developer Tools
XML Formatter & Beautifier
Format, beautify, and validate XML code. Check if your XML is well-formed.
Paste raw or minified XML and get it formatted with clean indentation and readable structure instantly. Used by backend developers, DevOps engineers, and integration specialists working with SOAP APIs, configuration files, RSS feeds, and data exchange formats.
Features of the XML Formatter
Proper Indentation
Formats XML with configurable indentation (2 or 4 spaces or tabs) to show the element hierarchy clearly.
XML Validation
Detects well-formedness errors such as unclosed tags, missing root elements, and invalid characters.
Attribute Formatting
Formats multi-attribute elements with each attribute on its own line for readability.
Minify XML
Collapses formatted XML back to a single-line minified form for embedding in systems.
Namespace Support
Handles XML namespaces and namespace prefixes correctly during formatting.
How to Use the XML Formatter & Beautifier
- Paste your raw or minified XML into the input field.
- Click 'Format' to beautify or 'Validate' to check for errors.
- Review highlighted errors if any and fix them in the editor.
- Copy or download the formatted XML.
FAQ
What is the difference between XML well-formedness and validation?▾
Well-formedness means the XML follows basic syntax rules (closed tags, proper nesting). Validation checks the document against a schema (DTD or XSD) that defines allowed elements and attributes.
Can this formatter handle large XML files?▾
Yes, the formatter works with large XML payloads. Very large files (several MB) may take a moment depending on your browser.
Does this support XHTML?▾
Yes. XHTML is valid XML, so the formatter handles it correctly as long as the document is well-formed.
What is a CDATA section in XML?▾
CDATA sections () allow you to include text with special XML characters without escaping them. The formatter preserves CDATA sections intact.
XML Developer Tips
- Always declare the XML version and encoding:
- Use XPath expressions to query and extract specific nodes from large XML documents.
- XSLT can transform XML into HTML, other XML formats, or plain text for presentation.
- For SOAP web services, XML is the envelope format — a well-formed XML validator is essential.
- Consider JSON instead of XML for new APIs — JSON is more compact and easier to parse in JavaScript.
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