JSON to XML Converter

Convert JSON to XML instantly. Free online JSON to XML converter — paste JSON and get well-formed XML output. No signup, runs in browser.

FreeNo signupWell-formed XMLRuns in browser

Input JSON

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XML output

JSON to XML — Converting Modern API Data to Legacy Formats

Most modern APIs use JSON, but the world is full of legacy systems, enterprise software, and standards that require XML. SOAP web services, SAP integrations, government data portals, financial reporting (XBRL), Android layouts — all use XML. Being able to convert JSON to XML means you can bridge your modern data sources with these older systems without rewriting everything.

The conversion challenge

JSON and XML represent data differently at a fundamental level. JSON has native arrays, booleans, numbers, and null. XML has only text — everything is a string or element. JSON has no equivalent for XML attributes. XML requires a single root element; JSON can have multiple top-level keys. This converter wraps output in a <root> element and handles arrays by repeating elements with the same tag name.

XML escaping rules

XML has five reserved characters that must be escaped in element content: & becomes &, < becomes <, > becomes >, " becomes ", and ' becomes '. This tool escapes all five automatically, ensuring the output is valid XML that passes schema validation.

Working with SOAP APIs

SOAP (Simple Object Access Protocol) is an XML-based protocol still widely used in enterprise systems — banking, healthcare, government. If you have data in JSON format and need to call a SOAP endpoint, convert the relevant portion to XML, then wrap it in the appropriate SOAP envelope structure. The XML output from this tool gives you the inner element to work with.

Frequently asked questions

Why wrap output in a tag?

JSON can have multiple top-level keys but XML requires a single root element. The converter wraps everything in to ensure well-formed XML.

How are JSON arrays converted to XML?

Each array item becomes a repeated element with the same tag name. For example, a "books" array with 3 items becomes three elements.

Can I use this for SOAP API requests?

Yes. Convert your JSON payload to XML, then wrap it in the appropriate SOAP envelope tags for your service.

What characters are escaped in XML output?

The converter escapes &, <, >, and " as their XML entities (& < > ") to ensure well-formed output.

Is my data safe?

Yes. All conversion runs locally in your browser. Nothing is uploaded.

What if my JSON has numeric or special character keys?

Keys that are invalid XML tag names (starting with numbers, containing spaces) are sanitized — invalid characters are replaced with underscores.