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XML Formatter

Introducing XML Formatter — Now Live on Tools.Town

XML Formatter beautifies minified or messy XML with proper indentation, validates well-formedness, and highlights syntax errors with line numbers.

Tools.Town Team 7 May 2026 3 min read

XML Formatter is now live on Tools.Town — a tool that takes minified or inconsistently formatted XML and outputs clean, properly indented, valid XML, with well-formedness validation and line-number error reporting.

Paste XML from an API, config file, or SOAP response — and get readable, validated code in one click.

What Does It Do?

Beautify

Adds consistent indentation and line breaks to any XML — choose 2-space, 4-space, or tab indentation.

Validate

Checks XML well-formedness — mismatched tags, unclosed elements, and bad attributes are flagged with line numbers.

Minify

Strip all whitespace and compress the XML for production payloads, SOAP requests, or compact storage.

The formatter checks well-formedness only (structural validity). Full XML Schema (XSD) validation is available in the advanced mode.

How It Works

Paste XML

Paste any XML — a single-line API response, a large config file, or a SOAP envelope.

Validate

Well-formedness errors are highlighted immediately with the exact line and element causing the problem.

Copy output

Copy the formatted (or minified) XML, ready to paste back into your code or API tool.

Why We Built It

XML from APIs, configuration systems, and SOAP services is frequently minified or inconsistently indented — unreadable without formatting. XML Formatter makes it readable instantly and catches structural errors that would otherwise surface as cryptic parser exceptions in your application.

Try It Now

Free Tool
No sign-up In-browser

XML Formatter

Beautify and validate XML with proper indentation. Highlights well-formedness errors with line numbers.

Beautify & minifyWell-formedness checkError line numbers2/4-space or tab indent
Format XML

Related: JSON to XML for data conversion, and JSON Formatter for JSON equivalents.

Frequently Asked Questions

Does it validate the XML?
Yes. The formatter checks well-formedness — matching tags, proper nesting, correct attribute quoting, and a single root element. Errors are shown with line numbers.
What indentation options are available?
2 spaces, 4 spaces, or tab indentation. The output always follows consistent indentation regardless of the input's formatting.
Can it also minify XML?
Yes. Toggle Minify mode to strip all whitespace between tags and compress the XML for production use or API payloads.

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