Will the formatter preserve XML comments?

Yes. Comments are retained and indented with the surrounding markup so they remain in context.

Does it handle XML namespaces correctly?

Namespace prefixes and declarations are preserved exactly as they appear in the source document.

Only if the document is well-formed XHTML. Standard HTML with unclosed tags will cause a parse error.

Formatting only adds whitespace for readability. Validation checks the document against a DTD or XSD schema.

Paste XML and get it properly indented and formatted with one click.

Input

Output

Paste XML and get it properly indented and formatted with one click.

Last updated: 2026-09-22 · Reviewed by Nham Vu