XML Formatter
FreeFormat and validate XML documents with syntax highlighting
xmlformatvalidate
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How it works
1
Paste
Paste or type your raw XML into the input editor.
2
Format
Click Format to apply proper indentation and line breaks, or Minify to collapse it into a single line.
3
Copy
Copy the formatted XML or review any syntax errors highlighted inline.
Frequently asked questions
Is my XML data sent to a server?+
No. All formatting and validation runs entirely in your browser. Your data never leaves your device, so it is safe to paste configuration files, SOAP payloads, or any sensitive XML.
Does the formatter validate my XML?+
Yes. It checks for well-formedness: matching tags, proper nesting, and valid syntax. It highlights errors so you can fix them. It does not validate against an XSD or DTD schema.
Can I control the indentation size?+
Yes. You can choose between 2-space, 4-space, or tab indentation. The default is 2 spaces, which keeps deeply nested XML compact and readable.
What is the difference between format and minify?+
Format adds indentation and line breaks for readability. Minify removes all unnecessary whitespace to produce the smallest possible output, ideal for network transfer or storage.