XML Formatter and Validator

XML Formatter and Validator is a free tool that runs entirely in your browser, with no data ever sent to a server. Format, minify, and validate an XML document.

What it's for

Make a received XML stream readable when it's all on one line, check that a document is well-formed before using it, or lighten it before sending it.

What this tool does not do

This tool checks that the document is well-formed (tags correctly nested and closed), not that it complies with a particular XSD or DTD schema.

Frequently asked questions

Does the tool handle XML namespaces?

Yes: namespace prefixes (like xmlns or soap:) are kept as is, formatting only affects indentation.

Is my data sent to a server?

No: the text you type or paste is processed entirely in your browser, on your device. It is never transmitted to a server.

Do I need to create an account or install anything?

No: the tool works directly in this page, with no sign-up and nothing to install.