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Data & JSON · Free online tool

XML Validator

Check XML syntax and display a readable validation result.

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Ready to use Processes locally in your browser
Validation report
No upload is required for these text tools.

How to use XML Validator

Validate whether an XML document is well-formed using your browser’s XML parser. This does not validate a custom XSD schema.

  1. Type or paste your input into the editor.
  2. Adjust available options, then choose Validate XML.
  3. Review the result and copy or download it if useful.

Who is this tool for?

Students, developers, designers and anyone who works with data & json can use this tool to quickly test concepts without installing a full development environment.

Privacy and safety

Processing for this tool happens inside your browser, and CodingPremise does not receive the text you enter through a server-side processing endpoint. Your browser may still contact our hosting service to load this page. Avoid pasting passwords, private API credentials, or other sensitive information into websites you do not control.