XML Formatter

Pretty-print and validate XML data with proper indentation. Paste XML, click format, and get clean, readable, correctly nested output — or a clear error if the XML isn't well-formed.

XML Input

Formatted XML

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Why use XML Formatter?

This tool uses the browser's native XML parser to validate that your XML is well-formed, then reformats it with consistent, depth-based indentation for readability. It's a companion to the site's JSON Formatter and XML/JSON conversion tools.

Key benefits

Validates XML and flags parsing errors
Consistent nested indentation
Runs entirely in your browser

Features

XML well-formedness validation
Depth-based indentation
Copy button for the formatted result

Popular use cases

Reading a minified or single-line XML API response
Validating XML before using it in a config file
Cleaning up XML for documentation or review

How to use XML Formatter

1
Paste your XML
Enter XML data into the input panel.
2
Format
Click Format XML to get indented, readable output.
3
Copy the result
Use Copy XML to grab the formatted markup.

Frequently asked questions

Does this validate XML, not just format it?

Yes — the browser's XML parser checks the document is well-formed and reports an error if it isn't, before formatting.

Does this validate against a schema (XSD)?

No, only well-formedness (correct tag nesting and syntax) is checked, not conformance to a specific schema.

Is my XML uploaded anywhere?

No. Formatting happens entirely in your browser.

Last reviewed: July 2026

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