JSON to XML Converter
Paste your JSON and get clean, well-formed XML in one click. Handles nested objects, arrays, special characters, and custom root elements — free, instant, and private.
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Why Convert JSON to XML?
Despite JSON becoming the dominant data format for modern REST APIs and web applications, XML remains heavily used in enterprise systems, SOAP services, configuration frameworks such as Maven and Ant, document formats like DOCX and SVG, and legacy integration layers. A reliable JSON to XML converter is therefore an everyday necessity for developers who bridge modern and legacy stacks. Rather than hand-authoring verbose XML markup or writing one-off scripts, this tool lets you paste any valid JSON and receive clean, indented, well-formed XML within milliseconds. All processing happens in your browser — your data never leaves your device, making it safe to convert sensitive payloads such as API responses or internal configuration objects.
How JSON to XML Conversion Works
The conversion follows a predictable and reversible mapping: JSON objects become XML parent elements whose keys are child element tag names, JSON arrays produce repeated sibling elements sharing the array key as their tag name, and scalar values — strings, numbers, booleans, and nulls — become element text content. All reserved XML characters in values are automatically escaped to valid XML entities so the output is parseable by any standards-compliant XML parser, including the browser's built-in DOMParser, Java's JAXB, Python's ElementTree, and .NET's XDocument. The converter also supports a configurable root element name, so you can wrap the entire document in a meaningful top-level tag rather than the generic default. Once converted, you can copy the XML to your clipboard or download it as a .xml file ready to drop into your project.
Frequently Asked Questions
How does the JSON to XML converter work?
The converter parses your JSON input, walks the resulting object tree, and maps each key-value pair to a corresponding XML element. JSON objects become parent elements, JSON arrays become repeated sibling elements, and primitive values become element text content. The output is pretty-printed with proper indentation so it is immediately readable and usable.
How are JSON arrays converted to XML?
Each item in a JSON array is emitted as a repeated XML element with the same tag name as the array key. For example, the JSON key "item" whose value is an array of three strings produces three <item> elements in sequence. If array items are objects, each object's properties become child elements of that repeated tag.
Does the converter handle special characters in JSON values?
Yes. Any special characters in JSON string values that are reserved in XML — such as &, <, >, ", and ' — are automatically escaped to their corresponding XML entities (&, <, >, ", ') so the output is always well-formed and parseable by any XML parser.
Can I use JSON keys as XML attributes instead of child elements?
By convention, JSON keys that start with the @ symbol are treated as XML attributes rather than child elements, following the Badgerfish and similar XML-to-JSON mapping conventions. This lets you represent XML attribute semantics in your source JSON and get attribute nodes in the output rather than nested child elements.
Is there a file size limit for JSON to XML conversion?
The converter runs entirely in your browser with no server round-trip, so there is no imposed file size limit from our side. Practical performance depends on your device memory and browser engine. Files up to several megabytes convert instantly on modern hardware. For very large datasets, consider splitting the JSON into smaller batches before converting.