Paste XML to reformat it with consistent 2-space indentation, using the browser's built-in XML parser. Malformed XML is flagged with a clear error. All processing happens in your browser.
Paste XML and Tabreon reformats it with consistent indentation instantly, flagging malformed XML with a clear error — entirely in your browser.
Why use Tabreon for this?
Formatting runs client-side using the browser's own XML parser — your document never leaves your browser.
Malformed XML is flagged immediately instead of silently producing broken output.
No account, no size limit, and no watermark on the output.
How to format XML
1Paste your XML. Paste an XML document into the input panel.
2Click Format XML. Valid XML is reformatted with 2-space indentation; malformed XML shows an error instead.
3Copy or download. Copy the formatted output, or download it as a file.
What is XML formatting?
XML formatting — like JSON formatting — adds consistent indentation and line breaks to a document's nested elements so its structure is readable. It's especially useful for minified XML from an API response, config file, or SOAP payload that arrives as a single unreadable line.
How Tabreon handles your data
Parsing and formatting run entirely in your browser using the built-in DOMParser API — the XML you paste is never transmitted to a server.
Key features
Consistent 2-space indentation for nested elements
Clear error for malformed XML instead of silent failure
Copy-to-clipboard and file download
Uses the browser's native, spec-compliant XML parser
Common use cases
Reformatting a minified SOAP response for debugging
Cleaning up an exported XML config file before editing it by hand
Validating that a hand-written XML snippet is well-formed before use
Common mistakes & limitations
This formats and validates well-formedness only — it does not validate against an XML Schema (XSD) or DTD.
XML comments and processing instructions are preserved but are not specially re-indented beyond the surrounding element structure.
Frequently asked questions
No. Parsing and formatting happen locally in your browser using the built-in DOMParser API — your document is never transmitted to a server.
Common causes are a missing closing tag, mismatched tag names, or an unescaped `&` character. The browser's XML parser requires strictly well-formed XML.
No. This tool checks only that the XML is well-formed (correctly nested and closed tags) — it does not check the document against an XSD or DTD schema.