JSON ↔ XML Converter
Convert between JSON and XML formats
Frequently Asked Questions
Why convert JSON to XML?
Many legacy systems (SOAP services, banking APIs, some government endpoints) only accept XML. When your frontend or service speaks JSON, you need to convert before sending. The reverse is useful when consuming legacy APIs and reshaping them into modern payloads.
How does the tool map JSON to XML?
- JSON object → XML element, key is the tag name - JSON array → multiple elements with the same tag - JSON string/number → element text content - Fields prefixed with `@` or `$` can be emitted as XML attributes You can configure the root element name (default `root`) and indentation.
What if my JSON keys contain characters invalid in XML?
XML tag names cannot start with digits or contain spaces/special characters. The tool sanitizes by default (e.g., spaces to underscores, numeric starts prefixed with `n_`). To preserve original keys, enable CDATA wrapping or define a custom prefix rule.
What information might I lose going from XML back to JSON?
XML has attributes, namespaces, comments, and processing instructions. Attributes typically collapse into an `@attributes` field, while comments and PIs are dropped. Audit these differences before round-tripping.
Is my data uploaded?
No. All conversion runs in your browser, so enterprise SOAP payloads are safe to process.
Why does XML still matter?
XML beats JSON on document semantics (namespaces, Schema validation, XPath/XSLT) and remains the default for compliance-heavy or regulated systems like finance and government. The web and mobile prefer JSON for its lightness. Both coexist — this tool is the bridge.