Data Format ConvertersFree Tool

XML to JSON Converter

Provided byFreeFormatterfreeformatter.com

Converts an XML document to JSON with configurable attribute prefixing and array detection.

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About this tool

What XML to JSON Converter does

The XML to JSON Converter on FreeFormatter transforms XML documents into JSON format directly in the browser. Users can paste their XML code into the input field or upload a file, and the tool outputs the equivalent JSON structure in a separate pane. It supports nested elements, attributes, and configurable options for attribute prefixing and array detection, making it suitable for developers and data analysts who need to convert data between these two common formats without installing software.

Step by step

How to use the FreeFormatter XML to JSON Converter

  1. 1

    Open the XML to JSON Converter page on FreeFormatter.

  2. 2

    Paste your XML content into the left-hand input field or click 'Browse' to upload a file.

  3. 3

    Adjust optional settings such as the attribute prefix or array detection preferences if needed.

  4. 4

    View the generated JSON output in the right-hand pane, where it can be copied to the clipboard.

  5. 5

    Use the 'Reset' button to clear the fields and start a new conversion.

Is it right for you

Best for

Developers and data analysts who need a quick, no-installation way to convert XML files or snippets into JSON for use in APIs, configuration files, or data exchange workflows.

Limitations

  • Conversion results depend on the structure of the input XML; complex namespaces may not map perfectly.
  • The tool processes data client-side, so very large files may cause performance issues in the browser.
  • No built-in validation or schema enforcement is provided for the output JSON.
Questions

XML to JSON Converter FAQ

Can I convert a large XML file without crashing my browser?
The converter runs entirely in the browser, so very large files may slow down or freeze depending on your device's memory. For massive files, consider splitting the XML or using a desktop converter.
What does the 'attribute prefix' option do?
The attribute prefix option lets you control how XML attributes are named in the resulting JSON. By default, attributes may be prefixed to distinguish them from child elements, but you can customize or disable this behavior based on your needs.
Does the tool handle XML namespaces automatically?
The converter attempts to represent namespace prefixes in the output, but the exact mapping depends on the XML structure. For critical projects, verify the generated JSON against your expected schema.
Is the converted JSON valid for immediate use in an API?
The output is valid JSON syntax, but whether it matches your API's expected structure depends on your original XML layout. Always test the converted output in your specific environment before deployment.
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