Free JSON to XML Converter Online — Instant & Secure

What is JSON to XML Conversion?

JSON to XML conversion transforms JavaScript Object Notation into Extensible Markup Language. XML is widely used in enterprise systems, SOAP web services, configuration files, and legacy applications.

How to Use This Tool

1. Paste your JSON data into the editor
2. Click the "Convert to XML" button
3. View the formatted XML output
4. Copy or download the XML file

Features

• Well-formed XML with proper declaration
• Handles nested objects and arrays
• Automatic XML entity escaping
• Clean, indented output
• Instant download as .xml file

How JSON to XML Conversion Works

When you convert JSON to XML, each JSON key becomes an XML element tag, and its value becomes the element's text content. The converter wraps everything inside a root <root> element to ensure the output is a well-formed XML document per W3C XML 1.0 specification.

{
  "user": {
    "name": "Alice",
    "age": 30,
    "tags": ["admin", "editor"],
    "address": null
  }
}

<?xml version="1.0" encoding="UTF-8"?>
<root>
  <user>
    <name>Alice</name>
    <age>30</age>
    <tags>admin</tags>
    <tags>editor</tags>
    <address/>
  </user>
</root>

JSON vs XML – When to Use What?

Choosing between JSON and XML depends on your use case. Here's a quick comparison to help you decide:

Need other formats? Try our JSON to YAML, JSON to CSV, or JSON to SQL converters.

JSON to XML Conversion Rules & Edge Cases

Understanding how specific JSON structures map to XML helps you predict and control your output. Below are the exact conversion rules this tool applies — based on widely accepted JSON-to-XML mapping conventions used in libraries like Jackson (Java), xml2js (Node.js), and xmltodict (Python).

{ "color": ["red", "blue"] }

<color>red</color>
<color>blue</color>

{ "a": { "b": { "c": "deep" } } }

<a><b><c>deep</c></b></a>

{ "field": null }

<field/>

{ "active": true, "score": 99 }

<active>true</active>
<score>99</score>

{ "title": "AT&T <Corp>" }

<title>AT&amp;T &lt;Corp&gt;</title>

{ "first-name": "John", "2fa": true }

<first-name>John</first-name>
<_2fa>true</_2fa>

Convert JSON to XML in Code

Need to perform this conversion programmatically? Here are working code examples in the most common languages. Use the online tool above for quick conversions, or implement these snippets directly in your codebase.

import json
import dicttoxml
from xml.dom.minidom import parseString

# Your JSON string
json_str = '{"user": {"name": "Alice", "age": 30}}'

# Parse JSON to Python dict
data = json.loads(json_str)

# Convert dict to XML bytes
xml_bytes = dicttoxml.dicttoxml(data, custom_root='root', attr_type=False)

# Pretty-print the XML
xml_pretty = parseString(xml_bytes).toprettyxml(indent="  ")
print(xml_pretty)

const { XMLBuilder } = require("fast-xml-parser");

// Your JSON object
const jsonData = {
  root: {
    user: {
      name: "Alice",
      age: 30,
      tags: ["admin", "editor"]
    }
  }
};

// Configure and build XML
const builder = new XMLBuilder({
  ignoreAttributes: false,
  format: true,
  indentBy: "  "
});

const xmlOutput = builder.build(jsonData);
console.log(xmlOutput);

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;

public class JsonToXmlConverter {
    public static void main(String[] args) throws Exception {
        String jsonStr = "{"user":{"name":"Alice","age":30}}";

        // Step 1: Parse JSON using ObjectMapper
        ObjectMapper jsonMapper = new ObjectMapper();
        JsonNode jsonNode = jsonMapper.readTree(jsonStr);

        // Step 2: Convert to XML using XmlMapper
        XmlMapper xmlMapper = new XmlMapper();
        String xmlOutput = xmlMapper
            .writerWithDefaultPrettyPrinter()
            .writeValueAsString(jsonNode);

        System.out.println(xmlOutput);
    }
}

using Newtonsoft.Json;
using System.Xml;

string jsonStr = @"{""user"":{""name"":""Alice"",""age"":30}}";

// Convert JSON string directly to XmlDocument
XmlDocument xmlDoc = JsonConvert.DeserializeXmlNode(jsonStr, "root");

// Pretty-print the XML output
string xmlOutput = xmlDoc.OuterXml;
Console.WriteLine(xmlOutput);

For quick one-off conversions without writing code, use the online JSON to XML converter at the top of this page.

Common Use Cases for JSON to XML Conversion

JSON to XML conversion is needed in specific integration and migration scenarios where XML is the required format. Here are the most common real-world situations where this tool is used:

Frequently Asked Questions (FAQ)

Common JSON to XML Conversion Errors & Fixes

If your JSON is not converting correctly, here are the most common issues and how to resolve them: