Free Online JSON to XML Converter — No Signup Required
JSON to XML Online — Convert JSON to Well-Formed XML
Paste JSON and convert it to clean, indented XML — with a custom root element, your choice of indentation, and an optional XML declaration. Fast, secure, and entirely in your browser.
Conversion runs locally. Your JSON never leaves your device.
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Well-Formed XML
Single root, escaped text, sanitized tag names every time.
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Configurable Output
Custom root element, indentation, and XML declaration.
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Fast & Free
Handles large payloads with no signup and no limits.
How It Works
Convert JSON to XML in 4 Steps
No installation, no signup. Results in milliseconds.
01
Paste JSON
Paste or type your JSON into the input panel.
02
Set Options
Pick a root element, indentation, and the XML declaration.
03
Convert
Click Convert and the well-formed XML appears instantly.
04
Copy or Download
Copy the XML or download it as a .xml file.
The Basics
What Is a JSON to XML Converter?
A JSON to XML converter transforms JSON data into equivalent XML markup. Each JSON key becomes an XML element, nested objects become nested elements, and array items repeat the same element — wrapped in a single root so the result is well-formed XML you can feed to SOAP services, legacy systems, or any XML parser.
Why convert JSON to XML
Plenty of enterprise and legacy systems still speak XML: SOAP APIs, older banking and healthcare integrations, and tools that validate against an XSD. Converting a modern JSON payload to XML lets you bridge the two without hand-writing tags.
What the converter handles
Nested objects and arrays, to any depth.
A custom root element so the output has one valid root.
Keys that are not valid XML names, sanitized automatically.
JSON and XML model data differently. These are the rules the converter applies so the output is always well-formed.
JSON
Becomes in XML
Object { }
An element containing one child element per key.
Key / value
The key becomes the element name; the value becomes its text or children.
Array [ ]
The element repeats once per item (XML has no array type).
String / number / boolean
Escaped text content inside the element.
null
An empty, self-closing element.
Top-level value
Wrapped in your chosen root element so there is a single root.
Arrays and invalid tag names
XML has no concept of an array, so an array like "roles": ["admin","dev"] becomes two <roles> elements rather than one element containing a list. Keys that are not valid XML names — those with spaces or a leading digit, for example — are sanitized (invalid characters become underscores) so the document still parses. If the JSON itself is malformed, the JSON parser will point to the exact error first.
Root element and declaration
Because every XML document needs exactly one root, the converter wraps the output in the root element you specify (default root). Toggle the <?xml version="1.0"?> declaration on when the XML is a standalone file, off when it is embedded elsewhere. To tidy or re-indent XML you already have, use the XML formatter.
Walkthrough
A Worked Example: Order Payload to XML
See exactly how a nested JSON object, with an array inside it, becomes well-formed XML.
Notice three things: the two-item items array became two separate <items> elements, the null coupon became a self-closing <coupon/>, and everything sits under a single <root>. That is the behaviour described in the mapping table above. If the output looks off, re-check the JSON in the JSON parser, and re-indent the XML with the XML formatter.
Use Cases
When to Convert JSON to XML
XML is still the lingua franca of plenty of systems.
SOAP Web Services
Turn a JSON payload into the XML body a SOAP endpoint expects.
Legacy Integrations
Feed older banking, healthcare, or ERP systems that only read XML.
RSS & Sitemaps
Shape JSON data into XML-based feed or sitemap formats.
XSD Validation
Produce XML you can validate against an existing schema.
Config Migration
Move settings from JSON into XML-based configuration files.
Learning
See how the same data looks in JSON and in XML side by side.
FAQ
Frequently Asked Questions
Everything developers ask about converting JSON to XML.
It turns a JSON object or array into equivalent XML: each key becomes an element, nested objects become nested elements, and arrays repeat an element per item. Everything runs in your browser.
XML has no array type, so each item in an array is emitted as a repeated element using the array's key name. A "roles": ["admin","dev"] array becomes two separate <roles> elements.
Yes. Set the root element in the options strip. It wraps the whole document so the XML has a single valid root, which every XML parser requires.
Keys with spaces or a leading digit are sanitized to valid XML names, with invalid characters replaced by underscores, so the output is always well-formed.
Optionally. Toggle the <?xml version="1.0" encoding="UTF-8"?> declaration on for a standalone file, or off when the XML will be embedded inside something else.
The converter validates the JSON first and shows a clear parse error so you can fix it before converting. For a deeper look, paste it into the JSON parser.
No. Conversion runs entirely in your browser using JavaScript. Your JSON is never uploaded, never stored, and never logged, so it is safe for sensitive payloads.
Use the XML formatter to beautify, re-indent, or validate the XML output. To learn the format itself, see our guide on what JSON is.