About the JSON to XML Converter
The JSON to XML converter transforms JSON objects and arrays into well-formed, indented XML markup. While JSON dominates modern web APIs, many legacy enterprise systems, SOAP services, RSS/Atom feeds and configuration formats still require XML. Instead of manually writing opening and closing tags for every field, this tool automates the transformation while preserving your data's structure.
This is useful for integration engineers connecting a modern JSON API to a legacy XML-based system, developers generating XML configuration or feed files, and students learning the structural differences between the two formats. Everything is computed locally in the browser, so you can safely convert internal or proprietary data structures.
To use it, paste valid JSON into the input area and click "Convert to XML." Each JSON key becomes an XML element; objects become nested elements, and arrays are repeated as sibling elements sharing the same tag name (derived from the array's key, or a generic "item" tag when needed). The output is indented for readability and wrapped in a root element you can rename before converting.
For example, {"user":{"name":"Ana","tags":["admin","editor"]}} becomes an XML document with a <user> element containing a <name> element and two <tags> elements, one for each array entry — a pattern that matches how most XML consumers expect repeated values to be represented.
A common mistake is expecting attribute-based XML output (like <user id="1">) — this tool produces element-based XML by default since that maps more predictably from arbitrary JSON. If your target system strictly requires attributes for certain fields, you may need to adjust the generated XML manually afterward. Also remember that JSON keys must be valid XML element names; keys containing spaces or special characters are automatically sanitized to keep the XML well-formed.
Tip: always validate the resulting XML against your target schema (DTD or XSD) if one exists, since automatic conversion cannot know about naming conventions specific to your system. For simple data interchange, feeds, and configuration files, though, the direct element mapping this tool produces is usually exactly what's needed and can be used immediately.