XML Formatter Guide
Reference for formatting XML snippets, checking parser errors, attributes, namespaces, repeated elements, and API response structure.
Quick answer
Use the XML Formatter to validate and pretty-print XML snippets before comparing, converting, or documenting them.
What this tool does
The tool formats XML, helps reveal nested structure, and surfaces parser errors. It is useful for API responses, feeds, exports, and integration examples.
Supported input
- XML elements
- Attributes
- Nested nodes
- Repeated elements
- Copy-ready formatted XML output
Data handling and processing behavior
Processing is handled in the browser for this tool based on the current public implementation. Avoid entering sensitive XML payloads unless you have reviewed the implementation and your own data handling requirements.
Step-by-step use
- Paste XML into the formatter
- Review parser errors
- Format the snippet
- Check attributes and repeated tags
- Copy the result or convert it to JSON when needed
Review example
For an API response with repeated product or order nodes, format the XML before comparing versions. Check whether IDs live in attributes, child elements, or both. That distinction matters when someone later converts the response to JSON or writes a test that expects a specific field path. Save one small representative sample beside any notes or fixtures for future comparison work later.
Practical handoff note
For XML review, format before discussing namespaces, nested nodes, feed entries, or configuration fragments. Keep an eye on text nodes where whitespace can be meaningful. If the formatted XML is going into docs, include only the smallest useful fragment and move schema validation or parser-specific checks into the target system.
Common errors
Unclosed tags. XML must be well-formed.
Dropped attributes. Attributes can carry important IDs, types, or units.
Mixed content. Text and child elements in the same node can need special handling.
Limits
The formatter checks syntax and readability. It does not validate against an XML schema or verify integration-specific rules.
Next steps
- XML to JSON Converter — inspect XML as JSON
- JSON Formatter — format converted JSON
- Diff Checker — compare formatted XML versions
- Developer Data Cleanup Workflow — format XML before conversion, diff review, and fixture handoff