Convert XML to JSON Online

Transform complex XML data structures into clean, lightweight JSON objects instantly. Perfect for API integration and data migration.

XML Input
XML
JSON Output
JSON

Why Convert XML to JSON?

Faster Parsing

JSON is natively supported by JavaScript and parses significantly faster than XML, reducing load times for web apps.

Lightweight Payload

JSON's concise syntax removes verbose closing tags, reducing data size and bandwidth usage.

Web API Standard

Most modern REST APIs communicate using JSON. Converting legacy XML lets you integrate with modern services.

NoSQL Ready

Directly store the converted JSON output into NoSQL databases like MongoDB or CouchDB.

Detailed Configuration: Indentation & Formatting

XML is often deeply nested, making the resulting JSON equally complex. To maintain readability while debugging or integrating with your IDE, our tool provides dynamic **Indentation Control**. You can select between 2, 4, 6, or 8 spaces. For production environments where bandwidth is critical, smaller indentation (or switching to a minified view manually) ensures the payload is as lightweight as possible.

Developer Explanation: Mapping XML Tags to JSON Keys

Attribute vs Element
<user id="7">
  <name>Alex</name>
</user>

// Resulting JSON
{
  "user": {
    "@id": "7",
    "name": "Alex"
  }
}

A primary challenge in XML-to-JSON conversion is the "Attribute Problem". XML stores data both in text nodes (elements) and within brackets (attributes). Our engine uses the standard `@` prefix for attributes to distinguish them from sibling elements. This prevents naming collisions and ensures that your strict XML schemas are perfectly mirrored in the resulting JSON object model.

Frequently Asked Questions (FAQ)

XML attributes are converted into JSON properties, usually prefixed with @, ensuring no data loss when moving values from XML tag definitions into JSON's key-value structure.

Yes. Our converter uses a fast, non-blocking DOM parser optimized for your browser's local memory. We have successfully tested payloads up to 10MB, though very large files may experience slight delays during syntax highlighting.

The parser preserves namespace prefixes (e.g., `ns1:element`) as literal strings in the JSON keys. This ensures that your SOAP envelopes and enterprise-grade schemas remain valid and identifiable during the conversion process.

CDATA (Character Data) sections are treated as raw text strings. Any special characters inside the CDATA block are automatically escaped to maintain a valid and secure JSON string format, preventing injection errors.

Yes. While standard JSON objects are technically unordered, modern JS engines and our parser preserve the insertion order. The resulting JSON keys will match the vertical order of the tags as they appeared in the source XML file.

100%. All logic is executed on the **client-side**. Your XML data is never sent to a backend server or stored in any database, ensuring maximum privacy for your internal API payloads and configurations.
Example Transformation
Input XML<store>
  <book id="1">
    <title>Clean Code</title>
    <author>Robert C. Martin</author>
  </book>
</store>
Output JSON
{
  "store": {
    "book": {
      "@id": "1",
      "title": "Clean Code",
      "author": "Robert C. Martin"
    }
  }
}

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