JSON to XML Converter Online

While JSON is the undisputed king of modern web APIs, many legacy enterprise systems, SOAP APIs, and financial institutions still strictly require XML (eXtensible Markup Language). This tool is built to let you instantly bridge the gap between modern JSON payloads and legacy XML infrastructure.

Mapping Arrays to XML Nodes

Converting JSON to XML is tricky because they handle lists differently. In JSON, an array is just "users": ["John", "Jane"]. XML doesn't have "arrays"—it only has repeating nodes. When this converter detects a JSON array, it dynamically wraps the elements in parent tags, converting it to <users><user>John</user><user>Jane</user></users>. This ensures the resulting XML is perfectly valid and parseable by older strict schemas.

Validating XML Tag Names

JSON is very forgiving with keys—you can have a key named "123 user!". XML strictly forbids tag names that start with numbers or contain spaces. When parsing your JSON, this tool automatically sanitizes invalid keys, replacing spaces with underscores so the generated XML won't crash your backend SOAP server.

Complete Local Privacy

Corporate financial data or customer records should never be uploaded to a random cloud converter. This tool parses the JSON and recursively builds the XML string entirely within your browser's local memory. The conversion happens instantly without a single network request.