🔄 XML ↔ JSON Converter
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Bidirectional XML-JSON conversion with recursive structure preservation.
Convert XML to JSON and back with full structure preservation. XML attributes become @-prefixed JSON keys — <person id="1"> becomes {"@id": "1"} — enabling lossless round-trip conversion. Nested elements map to nested objects. Switch tabs to convert in either direction. All processing uses browser-native DOMParser and JSON APIs, never leaving your device.
📋 When to Use the XML ↔ JSON Converter
A legacy SOAP API returned XML but your modern stack consumes JSON — paste the response, convert, and keep moving instead of writing a one-off transform script. XML parsing and JSON output are generated in-browser; documents never upload.
⚙️ How the XML ↔ JSON Converter Works
The XML ↔ JSON Converter processes your input using conversion algorithms that run entirely in your browser. When you paste or upload content and select the output format, JavaScript parses the input, transforms it using format-specific logic (encoding, decoding, parsing, serializing), and produces the converted output. For file conversions, all processing uses browser-native APIs and JavaScript libraries loaded from CDN — your files are never uploaded to any server. The entire pipeline from input to output stays on your device.
How to Use the XML ↔ JSON Converter
- Choose direction — Click "XML → JSON" or "JSON → XML" tab. Each has its own input/output panel.
- Paste your data — Drop XML on the XML tab or JSON on the JSON tab. Sample data is pre-loaded for testing.
- Click Convert — Your data is transformed instantly. XML attributes become @-prefixed JSON keys. Nested elements map to nested objects.
- Copy results — Use the Copy button to grab the output. Switch tabs to convert back and verify round-trip fidelity.
Frequently Asked Questions
How are XML attributes handled?
XML attributes are prefixed with @ in JSON: <person id="1"> becomes {"@id": "1"}. This distinguishes attributes from child elements and enables lossless round-trip conversion.
What about repeated elements?
Repeated child elements with the same tag name become JSON arrays. A single element stays as an object. This matches the most common convention for XML-to-JSON conversion.
Can I convert JSON back to the same XML?
Mostly yes, but the root element name for JSON→XML defaults to "root". For perfect round-trips, use the @-prefix convention for attributes in your JSON.
Does it handle namespaces?
Basic namespace prefixes in tags are preserved. Complex namespace scenarios may require manual adjustment. The converter is designed for common API payloads and configuration files.
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