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JSON to XML Converter - Transform JSON to XML Online

Switch to XML → JSON
Input JSON
XML Output

About the JSON to XML Converter

Although JSON has largely replaced XML for web APIs, XML remains essential in many enterprise environments. SOAP services, legacy integrations, Android resource files, and data interchange standards like HL7 FHIR still rely on XML. When you have data in JSON and need to feed it into an XML-based system, this converter handles the transformation automatically.

The tool maps JSON structures to XML elements in an intuitive way: objects become nested elements, arrays produce repeating sibling tags, and primitive values become text content. The result is well-formed XML that validates against standard parsers.

How to Use the Converter

Paste your JSON into the input editor. The tool immediately generates the corresponding XML in the output pane. The output includes a proper XML declaration and uses indentation for readability. Copy the result and use it in your SOAP request, configuration file, Android layout, or any other context that requires XML.

Features

  • Well-formed output. The generated XML always passes validation, including proper escaping of special characters like &, <, and >.
  • Array handling. JSON arrays are converted to repeating XML elements with sensible tag names derived from the parent key.
  • Key sanitisation. JSON keys that are not valid XML names are automatically cleaned up to produce valid elements.
  • Pretty-printed output. Indented XML makes it easy to review the structure before using it.
  • Browser-based. No server round-trip; your data stays private and conversion is instantaneous.

When You Need JSON to XML Conversion

Common scenarios include integrating modern JSON-based microservices with legacy SOAP APIs, generating Android string resource files from a JSON translation export, creating XML test fixtures from JSON API responses, and preparing data for tools that only accept XML input. If you regularly move data between JSON and XML systems, this converter cuts out the manual reformatting.

Frequently Asked Questions

How does the converter map JSON to XML?
Each JSON key becomes an XML element name, and its value becomes the element's text content. Nested objects become nested elements. Arrays are converted to repeating sibling elements with a common tag name. Primitive values (strings, numbers, booleans, null) become text nodes.
What happens with JSON keys that are invalid XML element names?
XML element names cannot start with a number or contain certain special characters. The converter sanitises key names by replacing invalid characters with underscores and prepending an underscore if the name starts with a digit, ensuring the output is always well-formed XML.
Does the output include an XML declaration?
Yes. The converter includes a standard XML declaration () at the top of the output so the document is ready to use in any XML-based workflow.
Can I convert XML back to JSON?
This tool handles JSON-to-XML conversion. XML-to-JSON conversion requires different handling for attributes, namespaces, and mixed content, which is beyond the scope of this particular utility.