Convert JSON data to well-formed XML instantly. This free online tool handles nested objects, arrays, and all JSON data types. Everything runs in your browser — no data is sent to any server.
While JSON has become the dominant data format for web APIs, XML remains essential in enterprise systems, SOAP web services, RSS/Atom feeds, SVG graphics, and many industry standards (healthcare HL7, finance FIX). Converting between the formats is a daily need for developers integrating modern APIs with legacy systems. This converter transforms JSON structures into well-formed XML: objects become elements, arrays become repeated elements, and primitive values become text content. It handles the fundamental differences between the formats — JSON arrays have no direct XML equivalent, requiring wrapping elements, and XML supports attributes while JSON doesn't.
JSON and XML have different data models. JSON arrays have no direct XML counterpart (need wrapper elements). XML supports attributes (JSON doesn't). XML has a single root element requirement. Null values, mixed arrays, and namespaces all need special handling.
JSON array [1,2,3] becomes
Null converts to an empty self-closing element
Yes — output is well-formed XML with proper escaping of special characters (<, >, &, quotes) and a declaration header. Element names are sanitized to comply with XML naming rules.
The basic converter produces namespace-free XML. For namespaced output, you'd need to define mappings manually. Most JSON-to-XML use cases don't require namespaces.