XML Validator

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XML Validator

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About this tool

What XML Validator does

XML Validator is an online utility that checks Extensible Markup Language documents for structural correctness. Users can paste raw XML code or upload a file to receive immediate feedback on validity, with the tool highlighting errors related to mismatched tags, improper nesting, or invalid characters. The output confirms whether the document is well-formed and provides specific error messages to guide corrections, making it useful for anyone managing data exchange files, RSS feeds, or configuration files.

Step by step

How to use the CodeBeautify XML Validator

  1. 1

    Open the XML Validator on CodeBeautify and paste your XML code into the input field or click Choose a file to upload an XML document.

  2. 2

    Select the Validate XML button to run the syntax and well-formedness check.

  3. 3

    Review the results, which display validation status and list any errors with line and column numbers for easy location.

  4. 4

    Use the Auto option to automatically format and indent the XML for improved readability.

  5. 5

    Download the validated XML or click Save & Share to generate a link for later use.

Is it right for you

Best for

Developers, data architects, and technical writers who need to quickly confirm the integrity of XML data exchange files, RSS feeds, or configuration files without installing local validation software.

Limitations

  • The page includes advertisements and social media prompts that may distract from the validation process.
  • Results are based on standard XML syntax rules and may not catch domain-specific schema violations unless a schema is referenced.
  • The tool processes one document at a time; batch validation is not supported.
Questions

XML Validator FAQ

Can this tool validate XML against a specific schema or DTD?
The validator checks for well-formedness and standard syntax rules. For schema or DTD validation, you would need to reference an external schema file, as the tool does not appear to include built-in schema enforcement.
What kinds of errors will the validator catch?
It highlights common structural issues such as mismatched opening and closing tags, improper nesting, missing required elements, invalid character usage, and unquoted attributes.
Is there a file size limit for uploaded XML documents?
The material does not specify a maximum file size limit for uploads; very large files may cause performance delays or timeout errors.
Can I use this tool to validate SOAP or WSDL files?
Yes, the tool explicitly supports validation of SOAP, WSDL, POM, RSS, and other XML-based formats commonly used in web services and configuration.