XML Formatter
Validate XML and format it into clean, readable, indented markup.
XML Formatter tool
Paste valid XML and press Ctrl/Cmd + Enter to format it.
Result will appear here.
| Metric | Value |
|---|
Privacy: formatting runs locally in your browser. No XML is stored or transmitted.
This tool parses your XML with the browser XML parser, validates it, and then outputs a readable indented version.
Examples
- <root><a>1</a></root> → formatted with line breaks and indentation
- Nested elements → each level indented consistently
- Invalid tag nesting → parse error shown instead of output
FAQ
- What does this XML formatter do?
It validates XML input and reformats it with readable indentation.
- Does it preserve XML declarations?
Yes. If the input contains an XML declaration such as <?xml version='1.0'?>, it is preserved in the formatted output.
- What happens if the XML is invalid?
The tool shows a parse error and does not generate formatted output until the XML is valid.
- Is my XML stored?
No. Formatting runs locally in your browser and is not stored or transmitted.