Free Toolkit

JSON to XMLConvert JSON data to well-formed XML with customizable root and item tags.

JSON to XML illustration
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JSON to XML

Convert JSON data to well-formed XML with customizable root and item tags.

How to Use
1

Paste JSON data

Paste your JSON object or array into the input area.

2

Customize element names

Set root and item tag names for the XML output.

3

Copy XML output

Copy the formatted XML with declaration and proper structure.

What Is JSON to XML?

JSON to XML converts JavaScript Object Notation data into well-formed XML documents. While JSON dominates modern web development, XML remains essential in enterprise systems, SOAP services, RSS feeds, and many legacy applications. This converter recursively transforms JSON structures into XML elements: objects become parent elements with child elements for each key, arrays create repeating elements, and primitive values become text content. The output includes an XML declaration and uses proper XML character escaping.

Why Use Our JSON to XML?

  • Handles nested objects, arrays, and all JSON types recursively.
  • Customizable root and array item element names.
  • Proper XML character escaping for all special characters.
  • Well-formatted output with indentation and XML declaration.

Common Use Cases

SOAP Integration

Convert JSON API data into XML for SOAP web service requests.

Enterprise Systems

Transform modern JSON data for legacy XML-based enterprise applications.

RSS/Atom Feeds

Prepare JSON data for XML-based syndication formats.

Configuration Files

Convert JSON configuration into XML format for applications that require it.

Technical Guide

The converter recursively traverses the JSON structure, generating XML elements at each level. For JSON objects, each key becomes an XML child element containing the value. For arrays, each item generates a repeating element using the configurable item tag name. Primitive values (strings, numbers, booleans) become text content within their parent element. Null values generate self-closing empty elements. JSON keys are sanitized for XML compatibility: characters not valid in XML names are replaced with underscores. XML special characters in text content are escaped using standard entities: & โ†’ &amp;, < โ†’ &lt;, > โ†’ &gt;, " โ†’ &quot;. The output uses 2-space indentation for readability. The recursive approach preserves the full depth of nested JSON structures. Each nesting level adds one indentation level in the XML output.

Tips & Best Practices

  • 1
    Choose meaningful root and item tag names that describe your data structure.
  • 2
    JSON keys with special characters are automatically sanitized for valid XML tag names.
  • 3
    Null values produce self-closing empty elements in the XML output.
  • 4
    For very deep nesting, the XML output may be verbose โ€” consider flattening first.

Related Tools

Frequently Asked Questions

QHow are JSON arrays converted?
Each array item becomes a repeating XML element using the configurable "item" tag name.
QWhat about JSON null values?
Null values produce self-closing empty XML elements (e.g., <field/>).
QAre JSON key names preserved?
Yes, JSON keys become XML element names. Special characters are replaced with underscores for XML compliance.
QIs the output well-formed XML?
Yes, the output includes an XML declaration and all content is properly escaped.
QCan I control indentation?
The output uses 2-space indentation by default. This can be adjusted after copying the output.

About JSON to XML

JSON to XML is a free online tool from FreeToolkit.ai. All processing happens directly in your browser โ€” your data never leaves your device. No registration required. No ads. Just fast, reliable tools.