JSON to XML Converter Online

What Is a JSON to XML Converter?

A JSON to XML converter transforms JavaScript Object Notation data into Extensible Markup Language format. JSON uses key-value pairs and arrays to represent structured data, while XML uses a hierarchical tag-based syntax with opening and closing elements. Converting between these formats is a common requirement when integrating modern REST APIs with legacy SOAP services, enterprise middleware, or systems that mandate XML for data interchange.

This free online converter maps JSON objects to nested XML elements, handles arrays by repeating the parent element name, and properly escapes special characters like ampersands and angle brackets. It produces well-formed XML with an XML declaration header, ensuring compatibility with XML parsers and validators across all platforms. The entire conversion runs in your browser using client-side JavaScript, so your JSON payloads containing API keys, tokens, or sensitive configuration data are never transmitted over the network.

How to Convert JSON to XML

1. Paste your JSON into the input panel on the left side. You can paste objects, arrays, or nested structures of any depth.
2. Click the Convert button to transform your JSON into well-formed XML with proper indentation and nesting.
3. Review the XML output in the right panel. Objects become nested elements, arrays repeat the element name, and primitive values become text content.
4. Copy or download the result using the toolbar buttons. The download saves as a .xml file ready for use in your application.

Why Use PinusX JSON to XML Converter?

Privacy is the primary reason to choose PinusX over other online converters. In November 2025, jsonformatter.org was found to have leaked over 80,000 user credentials because they processed data server-side. Our converter is 100% client-side — your data never leaves your browser, making it safe to convert production API responses, database exports, and configuration files containing secrets. The tool handles deeply nested structures, Unicode characters, and large payloads without size limits imposed by server upload restrictions.

Frequently Asked Questions

How does JSON to XML handle arrays?

Each array element is wrapped in a repeated XML element using the parent key name. For example, a JSON array under the key 'items' produces multiple <items> elements, one per array entry. This follows the common convention for representing collections in XML without requiring wrapper elements.

Does JSON to XML conversion preserve data types?

XML is inherently text-based and does not have native type annotations like JSON. Numbers, booleans, and strings all become text content within XML elements. If you need type information preserved, consider adding XML Schema (XSD) definitions or xsi:type attributes to the output.

Can I convert nested JSON objects to XML?

Yes. Nested JSON objects are recursively converted into nested XML elements. Each key becomes an element name, and the value becomes either text content (for primitives) or child elements (for objects and arrays). The converter handles unlimited nesting depth.

Is my JSON data safe during conversion?

Completely safe. This converter processes everything locally in your browser using JavaScript. No data is sent to any server, no cookies are set, and no analytics track your input. You can verify this by checking the Network tab in your browser developer tools during conversion.

What happens with special characters in JSON keys?

XML element names cannot contain spaces or most special characters. The converter sanitizes keys by replacing invalid characters with underscores and prefixing numeric-start names with an underscore, ensuring the output is always valid XML.

Your data never leaves your browser. 100% client-side processing.