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🧾 XML Formatter

Format XML with indentation, lightweight nesting validation, position-aware errors, and copyable debug summaries.

XML checks
  • Formats tags, text nodes, comments, declarations, CDATA, and self-closing elements with deterministic indentation.
  • Checks XML-style nesting with a stack and reports mismatched, unexpected, or unclosed tags.
  • Reports typed position errors with line, column, and character position where possible.
  • Produces copyable JSON summaries for API/MCP-safe deterministic formatter coverage.
 Runs in your browser
XML formatting runs locally in your browser. Shared links only include XML input when you explicitly opt in.
What this tool does
XML Formatter formats XML into readable indentation and reports lightweight structural errors.
Why it is useful
It helps inspect feeds, sitemaps, API responses, config files, SVG fragments, and other XML documents without asking a model to reason through markup.
How it works
The browser tokenizes XML tags, checks tag nesting with a stack, and emits a deterministic formatted view plus typed errors.
Best input
Paste XML with complete tags, declarations, comments, CDATA, or self-closing elements. Keep schema validation for dedicated XML tooling.
Debugging tip
Use formatting to find missing closing tags, invalid nesting, malformed comments, and unexpected closing tags.
Privacy note
XML formatting happens locally in your browser.
Important limitation
This lightweight formatter checks structure but does not validate against every XML schema, DTD, namespace rule, or application-specific parser.
Quick answers
Can it format sitemaps?
Yes. It is useful for reading sitemap XML.
Does it validate schemas?
No. It formats structure and reports nesting errors, but it does not validate against XML schemas.
API examples
Call the same deterministic core through Utilito’s compact API router. Send only data you intentionally submit to the server-side endpoint.
Try in API playground →Schema →
Format XML with curl
curl
curl -X POST https://utilito.dev/api/run \
  -H "Content-Type: application/json" \
  -d '{"tool_id":"xml-formatter","input":{"input":"<root><name>utilito</name></root>","action":"format"}}'
Format XML from JavaScript
javascript
const res = await fetch('https://utilito.dev/api/run', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    tool_id: 'xml-formatter',
    input: { input: '<root><name>utilito</name></root>', action: 'format' }
  })
});
const data = await res.json();
console.log(data.result.output || data.result.report);
Format XML from Python
python
import requests
payload = {
    "tool_id": "xml-formatter",
    "input": {"input": "<root><name>utilito</name></root>", "action": "format"},
}
result = requests.post("https://utilito.dev/api/run", json=payload).json()["result"]
print(result.get("output") or result.get("report"))
Common Use Cases
Format XML responses from SOAP APIs
Make large, minified XML responses from legacy SOAP services readable for debugging.
Clean up exported XML configuration files
Format XML exports from tools like WordPress, Android, or enterprise systems.
Prepare XML for documentation or sharing
Format XML before including it in technical documentation or support tickets.
Config Formatter Workbench workflow
Move between JSON, YAML, TOML, XML, config conversion, JSON path inspection, and schema validation while keeping snippets local to the browser.
{}JSON Formatter🧾YAML Formatter / Validator⚙️TOML Formatter / Validator⚙️Config Format Converter🎯JSON Path Tester✅JSON Schema Validator
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