XML Formatter

It pretty-prints XML with proper indentation to make it readable, or minifies it to remove whitespace. It also checks that the document is well-formed.

Well-formed XML follows the basic syntax rules, such as every tag being properly closed and nested and having a single root element. The tool flags input that breaks these rules.

Well-formed means the syntax is correct, while valid additionally means the document conforms to a schema or DTD. This tool checks well-formedness, not schema validity.

Yes. It works in both directions, so you can expand XML for reading or strip whitespace to shrink it for transfer. The content stays the same either way.

No. Formatting, minifying and the well-formedness check all run in your browser, so your XML is never sent anywhere. It stays on your device.

If the document is not well-formed, for example with an unclosed tag, the tool reports the problem instead of formatting it. Fixing the markup lets it format correctly.

Pretty-printing adds only insignificant whitespace between elements, so the data is unchanged, though whitespace inside text content is preserved. Minifying removes only that insignificant whitespace.