Free XML Formatter & Validator
Beautify XML with indentation, minify whitespace between tags or validate XML syntax using your browser’s XML parser.
Syntax validation only; XSD/DTD schema validation is not included.
Private: your files are processed in your browser and are never uploaded to our server.
How to use
- Paste XML into the input box.
- Choose Format, Minify or Validate.
- Review the syntax result, then copy or download the output.
Format and validate XML syntax
This tool checks XML well-formedness using the browser’s XML parser. It does not validate against an XSD, DTD or application-specific schema. External resources are not fetched by this tool.
Formatting may change whitespace between elements; preserve significant mixed-content whitespace when required by your application.
Frequently asked questions
Does this validate an XSD schema?
No. It checks whether the XML is well-formed, not whether it conforms to an XSD or business schema.
Why is my XML invalid?
Common causes include unclosed tags, mismatched element names, unescaped ampersands and multiple root elements.
Is my XML uploaded?
No. XML parsing and formatting happen locally in your browser.