Convert JSON Payload to XML for Legacy APIs
Overview
Some banking, insurance, and government APIs still require XML request bodies despite the industry shift to JSON. Building an integration means constructing valid XML from your JSON data model. Paste your JSON payload and get an XML equivalent to test against the legacy endpoint.
How to Use This Tool
Paste your JSON payload. Click Convert to XML. The tool generates valid XML with proper nesting and encoding. Wrap the output in the required SOAP envelope or root element before sending to the API.
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PDF Tool →Frequently Asked Questions
Can I add a custom root element to the XML output?
Yes. The root element name field defaults to 'root'. Change it to match the expected XML structure of your target API (e.g. 'Request' or 'Message').
How do I include XML namespaces in the converted output?
Add namespace declarations manually to the root element after conversion. The converter generates namespace-free XML; you add xmlns:prefix='...' attributes as needed by the target API.
What is the difference between XML and JSON for API payloads?
JSON is smaller (no closing tags), easier to parse in JavaScript, and the default for modern REST APIs. XML is verbose but supports namespaces, validation with XSD, and is required by all SOAP and many older REST APIs.