XML Formatter
Format and indent XML documents for readability.
Processing: runs in your browser, nothing uploaded
About XML Formatter
API responses, SOAP messages, and exported config files often arrive as one enormous line of XML. Paste it here to get properly indented, readable structure so you can find the element you're looking for.
Where you'll need it
Debugging SOAP and REST API responses, reviewing sitemap.xml and RSS feeds, reading Android layout and Maven or .NET config files, and inspecting data exports from older enterprise systems.
If formatting fails, the XML is probably invalid
A formatter needs well-formed XML. The usual culprits: a tag that's opened but never closed, an unescaped ampersand (write & instead of a bare &), tags whose capitalization doesn't match (XML is case-sensitive), or more than one root element. Run it through the XML Validator to see exactly where the error is.
Does formatting change my data?
Indentation only adds whitespace between elements. In most documents that's harmless, but where whitespace is meaningful — mixed text content, or elements marked xml:space="preserve" — keep the original for production and use the formatted version for reading.
How to use
- 1
Paste your XML into the input.
- 2
Format it.
- 3
Read, copy, or download the indented result.
Privacy
Formatting runs locally in your browser, so API payloads and tokens never cross our network.
Frequently asked questions
Why won't my XML format?
It's probably not well-formed — look for unclosed tags, unescaped & characters, or mismatched tag case. The XML Validator will pinpoint the problem.
How do I turn formatted XML back into one line?
Use the XML Minifier.
Can I convert XML to JSON?
Yes, with the XML to JSON converter.
Is it safe to paste API responses?
Yes. The tool runs in your browser and doesn't send your XML anywhere.
Does it validate XML?
It formats structure. Schema validation is coming soon.
Large files?
Best for documents under 1 MB for smooth browser performance.
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