Does this validate my XML?

This tool focuses on formatting; it doesn't perform full schema or well-formedness validation.

Does it handle XML comments and declarations?

Yes, comments and the XML declaration are preserved and indented correctly.

No hard limit — very large documents may just take a little longer.

Format and indent minified or messy XML documents.

Private by default Instant results No signup

Processed locally

Your XML never leaves your browser tab.

Nesting-aware

Indentation reflects actual tag structure.

Instant results

No server round-trip needed.

Format, validate and beautify JSON instantly.

Check JSON for syntax errors, with exact error location.

Beautify messy HTML markup.

Beautify and indent CSS stylesheets.