JSON to XML Converter Free
Convert JSON data to well-formed XML instantly in your browser. Choose a custom root element, set indentation, and download the result. Works entirely client-side — your data never leaves your device.
JSON Input
XML Output
Pro — XSD schema validation, XSLT transform, batch file conversion, API access
API access · Priority queue · Team workspace
How It Works
Paste Your JSON
Paste any valid JSON — objects, arrays, nested structures, strings, numbers, booleans, and nulls are all supported. Use the Sample JSON button to load a demonstration payload and explore the conversion output before using your own data. The input field accepts JSON of any size.
Configure Output
Set the root element name (default: root), choose indentation (2 spaces, 4 spaces, tab, or minified), and optionally encode numbers and booleans as XML attributes instead of text content. Click Convert to generate the XML immediately — the conversion is instantaneous regardless of JSON size.
Copy or Download
Copy the XML to clipboard with one click or download it as a .xml file named after the root element. The stats bar shows the input character count, output character count, and total element count to help you verify the conversion is complete before using the output.
JSON to XML Features
Everything you need to transform JSON data into well-formed XML
100% Browser-Based
The entire JSON parsing and XML generation pipeline runs in your browser using JavaScript. No data is ever sent to a server — not even temporarily. This makes it completely safe for confidential JSON payloads, API responses containing tokens, database exports, and internal business data of any sensitivity level.
Nested Structure Support
Deeply nested JSON objects and arrays are fully supported. Each level of nesting produces properly indented child XML elements. JSON arrays are mapped to repeated elements with the parent key name — the most widely compatible approach for JSON-to-XML conversion. Mixed arrays of objects, strings, and numbers are all handled.
Custom Root Element
Set the root XML element name to match your schema requirements — the default is root but any valid XML element name is accepted. Keys with invalid XML characters (spaces, leading digits, special symbols) are automatically sanitised by replacing them with underscores so the output is always well-formed.
Flexible Indentation
Choose 2-space, 4-space, or tab indentation for human-readable output, or select Minified to produce a compact single-line XML string ideal for API payloads, configuration injection, and data transfer where whitespace adds unnecessary bytes. The same structured data, formatted for any use case.
Attribute Mode
Enable "Number/bool as attributes" to encode numeric and boolean JSON values as XML attributes rather than text content. For example, "active":true becomes <active value="true"/>. This matches certain XML schema patterns and SOAP conventions where scalar values are stored as element attributes.
Copy or Download
Copy the XML output to clipboard with a single click, or download it as a .xml file named after your root element. The stats bar shows input character count, output character count, and total XML element count so you can verify completeness before using the result in your application or pipeline.
Free vs Pro
| Feature | Free | Pro |
|---|---|---|
| JSON input size | Unlimited | Unlimited |
| XSD schema validation | — | |
| XSLT transform output | — | |
| Batch file conversion | — | |
| REST API access | — | |
| Namespace declarations | — |
Frequently Asked Questions
JSON arrays are converted by repeating the parent element for each array item. For example, "colors":["red","green"] becomes <colors>red</colors><colors>green</colors>. Nested objects within arrays produce nested XML elements. This is the most widely compatible mapping between JSON arrays and XML structures.
JSON null values are converted to self-closing XML elements with a xsi:nil="true" attribute, which is the standard XML Schema way to represent null. This preserves the key in the XML output while clearly marking it as absent.
No. The entire JSON-to-XML conversion runs in your browser using JavaScript. No data is uploaded, stored, or transmitted. This makes it safe to use with sensitive JSON payloads, API responses containing credentials, database exports, and any other private data.
Yes — use the XML to JSON tool from the Data Converters section on the homepage. It performs the reverse operation, parsing XML and producing a clean JSON object. The two tools are designed to be complementary so round-tripping JSON → XML → JSON preserves the original structure.