JSON to XML Converter

How to Convert JSON to XML

1. Paste your JSON data into the input field above. The tool comes pre-loaded with sample data — a users array with nested objects — so you can see the conversion in action immediately.
2. Configure your options. Set a custom root element name (default is root), choose pretty-printing for human-readable XML with indentation, and optionally include the XML declaration <?xml version="1.0"?> at the top of the output.
3. Click "Convert to XML". The tool parses your JSON, detects object properties, arrays, and @-prefixed attribute keys, and generates a well-formed XML document.
4. Download your XML file with one click. The output is valid XML ready for SOAP APIs, RSS feeds, sitemap generation, or any XML-consuming system.

How the Conversion Works

The JSON to XML converter follows a clear set of rules to produce predictable, well-structured XML from any JSON input:

• Objects become XML elements. Each key in a JSON object becomes an XML element tag. Child objects are recursively converted into nested elements, preserving the full hierarchy of your data.
• Arrays become repeated elements. When a JSON property holds an array, each array item becomes a repeated XML element with the property name as the tag. For example, a users array produces multiple <user> elements.
• @-prefixed keys become attributes. Property names starting with @ are interpreted as XML attributes on the parent element. "@id": "1" becomes <user id="1">. This gives you full control over attribute placement.
• Primitive values become text content. Strings, numbers, and booleans become the text content of their parent element. "name": "Alice" becomes <name>Alice</name>.
• Nested objects with text content. When an object has both string/number properties and nested objects, the primitives become child elements alongside the nested structure — nothing is lost and the hierarchy is fully preserved.
• Special characters are escaped. Values containing <, >, &, ", or ' are automatically XML-escaped to produce valid output.

Here's an example of the conversion in action:

// Input JSON
{
  "user": {
    "@id": "42",
    "name": "Alice",
    "roles": ["admin", "editor"]
  }
}

// Output XML
<user id="42">
  <name>Alice</name>
  <roles>admin</roles>
  <roles>editor</roles>
</user>

When to Convert JSON to XML

JSON dominates modern web development, but XML remains essential in many domains. Convert JSON to XML when you need to:

• Integrate with SOAP web services — enterprise SOAP APIs require XML request/response payloads. Convert your JSON data into valid SOAP envelopes before sending.
• Interface with legacy enterprise systems — many ERP, CRM, and financial systems (SAP, Oracle EBS, Salesforce SOAP API) speak XML natively. JSON-to-XML conversion bridges modern and legacy stacks.
• Generate RSS and Atom feeds — blog feeds, podcast syndication, and news aggregation use standardized XML formats. Convert your JSON content database into RSS XML for distribution.
• Create XML sitemaps for SEO — search engines require XML sitemaps. Generate them programmatically by converting your JSON URL list into valid sitemap XML.
• Produce configuration files — many frameworks (Spring, Maven, Android) use XML for configuration. Convert JSON configs to XML when your toolchain requires it.
• Export data for government and healthcare systems — industries like healthcare (HL7, FHIR XML) and government (UBL for invoicing) mandate XML formats for data exchange.

FAQ

Is my data secure?

Yes. All conversion happens in your browser using JavaScript — your JSON data never leaves your device, never touches a server, and is never stored or logged. You can verify this by opening your browser's Developer Tools (F12), going to the Network tab, and clicking Convert. You will see zero network requests.

Can it handle large JSON files?

Yes, up to practical browser memory limits. Files up to 10 MB convert smoothly. Very large files (50 MB+) may cause the browser tab to slow down due to JavaScript memory constraints, but there are no hard limits since all processing is local.

How do I specify XML attributes?

Prefix any JSON key with @ to convert it into an XML attribute. For example, "@class": "highlight" becomes class="highlight" in the output XML. This lets you precisely control which data becomes attributes versus child elements.

Does it handle nested arrays and objects?

Yes, the converter recursively processes all nesting levels. Arrays of objects become repeated elements with child elements for each property. Deeply nested structures are fully preserved in the output XML.

Can I convert XML back to JSON?

Yes — use our XML to JSON converter for the reverse conversion. The round-trip is not always lossless due to the structural differences between formats, but the XML-to-JSON tool preserves attributes with the @ prefix for maximum fidelity.