JSON XML Converter Guide

What does this tool do

The JSON XML Converter converts between JSON and XML instantly. Paste JSON to get XML, or paste XML to get JSON. Handles nested structures and arrays. Useful for integrating systems that use different data formats, migrating configs, or exploring format differences.

How to use it

1. Choose direction — JSON to XML, or XML to JSON.
2. Paste input — Paste valid JSON or XML in the input area.
3. View output — The converted result appears in real time.
4. Copy — Copy the output to the clipboard.
5. Switch — Change direction and paste the other format to convert back.

How it works

JSON → XML: The JSON is parsed, and each key becomes an element. Arrays become repeated elements; nested objects become nested elements. A root wrapper may be added for valid XML. XML → JSON: The XML is parsed with DOMParser, and the DOM is traversed to build a JavaScript object. Element names become keys; text content becomes string values; repeated elements become arrays. Conversion follows common conventions but may not round-trip perfectly for edge cases (e.g. attributes, mixed content).

All computation runs entirely in your browser. No data is sent to any server.

Use cases & examples

• API integration — Convert REST JSON responses to XML for legacy systems.
• Config migration — Move between JSON and XML config formats.
• Data export — Export structured data in the required format.
• Learning — Compare JSON and XML representations of the same data.
• Testing — Generate test data in the target format.

Example

JSON: {"name":"Alice","tags":["a","b"]}
→ XML:

<root>
  <name>Alice</name>
  <tags>a</tags>
  <tags>b</tags>
</root>

Limitations & known constraints

• Lossy conversion — XML attributes, namespaces, and mixed content may not map cleanly to JSON.
• Round-trip — Converting JSON→XML→JSON may not reproduce the original exactly.
• Large documents — Very large inputs may slow the conversion.
• Conventions — Conversion follows common rules; edge cases may vary.