XML Formatter
Use this free XML formatter to pretty-print and validate XML without uploading files to a remote server. Paste SOAP envelopes, RSS feeds, or configuration XML and get readable indentation instantly. The tool also minifies XML when you need a compact wire format.
Processing stays in your browser, so sensitive enterprise payloads never cross the network. Syntax errors from the browser’s XML parser are surfaced in plain language so you can fix mismatched tags quickly. Pair it with our JSON and YAML tools when you move between document formats during migrations.
Input
Paste or type your XML here…
Output
Your result will appear here
Frequently Asked Questions
Will this XML formatter fetch external DTDs?
No. Parsing uses the browser DOMParser and a client-side builder that does not resolve external entities, reducing XXE risk. Keep untrusted XML offline as you normally would.
Are namespaces preserved?
Yes. Prefixes and namespace declarations are retained through format and minify where the underlying structure allows.
Why did my DOCTYPE disappear?
Some normalization paths serialize the document element tree and may omit DOCTYPE. If you need the declaration, keep a copy of the original prologue.
Can I minify XML?
Yes - use Minify to strip ignorable whitespace between elements for smaller payloads.