Paste any JSON and get formatted XML output instantly — custom root element name, proper XML declaration included.
Also convert in reverse with our XML to JSON tool or format XML with the XML Formatter.
🔒 Your JSON is processed locally — nothing is stored or uploaded.
While JSON is the modern standard for REST APIs and web applications, many legacy enterprise systems, SOAP web services, and data exchange protocols still require XML format. This JSON to XML converter tool works as a JSON serializer, data format transformer, and SOAP integration tool for developers and data engineers who need to bridge modern JSON data with systems that only accept XML.
Enterprise developers frequently encounter this requirement when integrating modern microservices or REST APIs with older enterprise platforms built on SOAP, SAP, or legacy middleware that predates the JSON era. These systems expose XML-based interfaces that cannot be changed without significant cost, so the conversion happens at the integration layer — the modern service produces JSON, and a transformation step converts it to the XML the legacy system expects before sending the request.
Data engineers use JSON-to-XML conversion when exporting data to partner systems that specify XML as their data exchange format. Some industry standards in healthcare (HL7), finance (FpML, FIX), and government data (SDMX) mandate XML for data interchange. Having the source data in JSON and needing to transform it to a valid XML representation before submission is a routine task in these domains. This tool handles that conversion quickly for ad hoc transformations and small payloads without requiring a full ETL pipeline.
QA engineers and developers use JSON-to-XML converters when testing SOAP endpoints — generating a sample XML request body from a known JSON payload structure makes it easy to verify the endpoint's behavior with realistic data. The custom root element name field allows the generated XML to match the specific element name expected by the target SOAP operation. All conversion runs entirely in your browser — your JSON is never sent to any server.