XML Formatter & Validator
Format, beautify, or minify XML with built-in validation.
About XML Formatter & Validator
Format, prettify, and validate XML online. Error highlighting, minification, and one-click copy. No data upload, 100% browser-based. This page is part of UtilsNest's Developer Tools, so you can move between related workflows without leaving the browser.
How to use it
- Enter or adjust the values, text, or file input needed for XML Formatter & Validator.
- Review the generated result instantly and compare outputs until the result fits your use case.
- Copy, download, or continue to a related developer tools workflow if you need the next step.
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Open Developer ToolsFrequently Asked Questions
How do I validate XML?
Paste your XML and click Validate. The tool checks for well-formedness (proper tag nesting and closing). Full schema validation (XSD/DTD) is not included.
What is the difference between XML and HTML?
XML is strict — all tags must be closed and properly nested. HTML is more lenient. XML is used for data exchange, config files, and APIs like RSS and SOAP.