About this tool
Format and indent XML documents for readability. Useful when reviewing API responses, cleaning config before commit, or sharing readable snippets in docs and PRs.
Paste minified or uneven XML into Input. Click Format to indent elements and attributes. Example — Indent a compact order document: try `<order><id>42</id><item sku="A-100">Widget</item></order>` and expect something like `<order> <id> 42 </id> <item sku="A-100"> Widget </item> </order>`.
DTD/XSD validation is not performed — only well-formedness for formatting. See also: HTML Beautifier, and JSON Formatter. Runs in your browser — nothing you paste gets uploaded.
How to use
- Paste minified or uneven XML into Input.
- Click Format to indent elements and attributes.
- Copy the Output for reviews, diffs, or SOAP/XML API debugging.
- If parsing fails, the error banner points at malformed tags or entities.
Example
Indent a compact order document
Input
<order><id>42</id><item sku="A-100">Widget</item></order>
Output
<order>
<id>
42
</id>
<item sku="A-100">
Widget
</item>
</order>Limitations
- DTD/XSD validation is not performed — only well-formedness for formatting.
- Namespace-heavy documents may look correct but are not schema-checked.
- Huge XML dumps can lag in the editor; prefer local CLI formatters for multi-MB files.
Related guides
1Related tools
2Frequently asked questions
What does the XML Formatter do?
Format and indent XML documents for readability. Runs in your browser — no install, no account.
How do I use the XML Formatter?
Paste minified or uneven XML into Input. Click Format to indent elements and attributes. Copy the Output for reviews, diffs, or SOAP/XML API debugging. If parsing fails, the error banner points at malformed tags or entities.
Is the XML Formatter free?
Yes. No signup, no usage limits, no paywall.
Does the XML Formatter upload my data?
No. Processing happens locally in JavaScript. Your input is not uploaded, stored, or logged.
What are the limitations of the XML Formatter?
DTD/XSD validation is not performed — only well-formedness for formatting. Namespace-heavy documents may look correct but are not schema-checked. Huge XML dumps can lag in the editor; prefer local CLI formatters for multi-MB files.