Best uses
API payloads, XML configuration, feeds, integrations and readable document inspection.
XML Formatter & Validator
Format, beautify and validate XML online. Detect common XML structure problems and make XML documents easier to read.
Free XML Formatter & Validator
This free XML Formatter and Validator helps developers format XML documents into a readable structure and check common XML syntax problems directly in the browser.
What is XML?
XML, or Extensible Markup Language, is a markup format commonly used to store and exchange structured data. Proper formatting makes XML documents easier to inspect, edit and troubleshoot.
What Does This XML Tool Check?
- Unclosed XML elements
- Mismatched opening and closing tags
- Invalid nesting
- Unclosed quotes in attributes
- Malformed declarations
- Multiple root elements
- Missing root element
- Basic XML structure problems
Important:
This browser-based validator checks common XML
well-formedness problems. It does not validate XML
against external DTDs, XSD schemas or remote resources.
How to Format XML
- Paste your XML into the input box.
- Select your preferred indentation.
- Click Format XML.
- Review the formatted XML.
- Copy the result.
Example XML
A simple XML document can look like:
<products>
<product>
<name>Example Product</name>
<price>29.99</price>
</product>
</products>
Frequently Asked Questions
Does this tool validate XML?
Yes. It checks common XML well-formedness problems such as mismatched tags, unclosed elements and malformed document structure.
Does this tool connect to my XML files?
No. XML is processed directly in your browser after you paste it into the tool.
Does it validate XSD schemas?
No. This tool performs basic XML well-formedness checking. XSD and external schema validation are not performed.
Is the XML Formatter free?
Yes. The XML Formatter & Validator is free to use online.