JSON to XML Converter
Convert JSON data structures into XML format directly in your browser with the JSON to XML Converter. This tool processes everything locally without uploading your data, ensuring full privacy.
The JSON to XML Converter transforms JSON objects into well-formed XML documents using the fast-xml-parser's XMLBuilder algorithm. This conversion supports arrays as repeated XML elements and attributes via the @_ prefix convention, maintaining structural fidelity. Running entirely in your browser, it guarantees that no data leaves your device, enhancing privacy and security during conversion. For additional data handling, try our xml-to-json converter or json-formatter for easy JSON readability.
How to Use JSON to XML Converter
- Paste or type your JSON data into the input area. Ensure your JSON is valid and UTF-8 encoded for proper parsing.
- Optionally enable the pretty print feature to add indentation and line breaks for improved XML readability.
- Click the convert button to generate the XML output. The tool uses fast-xml-parser's XMLBuilder to handle the conversion efficiently.
- Review the XML output, which you can copy or download for use in your projects.
How It Works
The converter leverages the fast-xml-parser's XMLBuilder, a JavaScript-based algorithm that maps JSON structures to XML format. JSON keys become XML element names, and arrays are converted into repeated elements to preserve data order and hierarchy.
Attributes in XML are supported using the @_ prefix convention in JSON keys, allowing you to define XML attributes explicitly. The output is well-formed XML, meaning it follows XML syntax rules like proper tag nesting and escaping, though it may not validate against a specific XML schema.
Processing is done entirely in the browser using JavaScript, so your data never leaves your device, ensuring privacy and faster conversion without server latency.
Example
Input JSON:
{
"note": {
"@_date": "2024-06-01",
"to": "Developer",
"from": "Tool",
"items": ["item1", "item2"]
}
}
Output XML:
<note date="2024-06-01">
<to>Developer</to>
<from>Tool</from>
<items>item1</items>
<items>item2</items>
</note>When to Use JSON to XML Converter
- Developers integrating APIs that require XML payloads instead of JSON for legacy systems.
- Designers needing to convert JSON-based configuration files into XML for UI components.
- SEO specialists working with sitemaps or metadata stored in JSON but needing XML formats for search engines.
- Students learning data interchange formats and needing to compare JSON and XML representations.
For reverse conversion, check out our xml-to-json tool. To format your XML output for readability, use the xml-formatter, and for JSON formatting, see the json-formatter.
Frequently Asked Questions
Can this tool convert JSON arrays to multiple XML elements?
Yes, JSON arrays are converted into repeated XML elements with the same tag name to preserve the array structure in the XML output.
How does the tool handle JSON keys with special characters when converting to XML?
The tool uses the fast-xml-parser XMLBuilder which escapes invalid XML characters in tag names and attribute values to produce well-formed XML.
What does the <code>@_</code> prefix mean in JSON keys?
The @_ prefix designates that the associated JSON key-value pair should be converted into an XML attribute rather than an element.
Is my data uploaded to a server during conversion?
No, all processing occurs locally in your browser using JavaScript, so no data is sent to any server, ensuring complete privacy.
Does the output XML validate against schemas like XSD?
The converter generates well-formed XML that follows XML syntax rules but does not guarantee validation against specific XML schemas.