Free XML <-> JSON Converter Online
The best free online XML to JSON converter. Bidirectionally convert XML to JSON and JSON to XML with full support for attributes and nested objects.
XML Input
JSON Output
Built With Care
“This converter uses the browser's native DOMParser for XML parsing and maps attributes into '@attributes' keys — the same convention used by popular Node libraries. All processing is client-side, so confidential XML stays on your machine.”
XML to JSON Converter
Convert XML to JSON or JSON to XML in your browser. Handles attributes, nested elements, and arrays with strict validation on every conversion. Useful for migrating config files or integrating APIs that use different formats.
- 1Select the conversion mode (XML to JSON or JSON to XML) using the toggle button.
- 2Paste your source code into the input panel on the left.
- 3Click 'Convert Now' to handle the bidirectional translation instantly.
- 4Copy the validated output from the right panel for your development needs.
- 5Fix any reported syntax errors in the source before converting again.
- Lossless Translation: Our converter preserves XML attributes and namespaces accurately in JSON format.
- Real-time Validation: Automatically detects malformed tags or syntax errors during the conversion process.
- Two-Way Converter: Easily switch between XML to JSON and JSON to XML with a single click.
- Attribute Mapping: XML attributes become '@attributes' keys, following the Node.js ecosystem convention.
- In-Browser Conversion: Conversion happens entirely in your browser — nothing is uploaded.
XML to JSON Converter Specs
Limits
- Attributes stored under @attributes
- No DTD/XSD validation
Formats
- Output: JSON tree or XML string
Defaults
- Empty input, xml-to-json mode
How it works
- DOMParser + custom recursive walk
Honest caveats
- Mixed content (text + child elements) keeps only the first text node
- Namespaces are stripped in the JSON view
Real Ways People Use This
API Migration
Convert legacy XML API responses to JSON for use in modern JavaScript and React applications.
Configuration Files
Transform XML configuration files to JSON format for Node.js and serverless environments.
Data Integration
Bridge data formats between systems that output XML and systems that consume JSON.
Web Services Debugging
Inspect SOAP and REST responses by converting them to readable JSON for quick analysis.
- XML attributes, namespaces, and mixed content can map differently than expected in JSON structures.
- Round-trip conversion may preserve data but not original formatting/ordering semantics.
- Malformed XML/JSON must be fixed before conversion to avoid silent structure drift.
- 1Validate source syntax first and choose conversion direction deliberately.
- 2Convert and inspect attributes, arrays, and nested nodes for expected mapping.
- 3Run one downstream parser/test with converted output before deployment.