JSON to XML
Convert JSON objects into valid XML structures with customizable root tags and attributes.
Last updated: April 28, 2026
Waiting for input...Tool Settings
We use a standard mapping where JSON keys become XML tags. Arrays are converted into repeating elements under the parent tag.
All processing happens locally in your browser. Large files are handled in memory and never uploaded to any server.
JSON to XML
Bridge the gap between modern JSON APIs and legacy XML systems. Our JSON to XML converter creates a valid, well-formed XML document from any JSON object. You can specify the root element name and decide how to handle arrays and primitive values to match your target XML schema requirements. Every JSON key becomes an element name by default, with an option to sanitize keys that are not legal XML names, and arrays become repeating child elements sharing the same tag. Numbers, booleans, and nulls are written as text content, with nulls optionally skipped or emitted as empty elements. Because JSON has no concept of attributes, the tool can mirror them from a naming convention or leave them out entirely, which is the one genuinely lossy part of the conversion: if your target schema expects attributes, you must reshape the output. The XML declaration and indentation are configurable, and the whole conversion runs in your browser.
Why This Tool Exists
What makes this useful — and why I built it this way.
Cross-Platform Translation: Convert JSON structures to standard schema XML outputs.
Adjustable Root Tags: Define custom parent wrappers for generated XML lists.
Syntax Validation: Ensure nested properties map to correct XML elements.
Well-Formed Output: Every element is closed and escaped correctly, so strict XML parsers accept the result.
Local Conversion: Documents are converted in your browser and never uploaded.
When You'd Use This
Real situations where this tool saves the day.
Legacy Systems Integration: Translate API outputs to load in systems that require XML.
Configuration Formatting: Convert JSON parameters to match XML setup guidelines.
Software Development: Adapt data payloads to communicate with older enterprise APIs.
SOAP Client Mocking: Produce XML request bodies from JSON test fixtures.
Schema Handoffs: Reshape JSON exports to feed XML-based reporting or billing systems.
Using JSON to XML
It's straightforward — here's how it works.
Paste your JSON into the converter.
Set the name for the root XML tag.
Choose how arrays, nulls, and non-alphanumeric keys should be represented.
Review the generated XML in the preview, including the declaration line.
Download the generated .xml file or copy the code.
Questions People Ask
Honest answers about how this works.
How are JSON arrays converted?
Great question. Each item in a JSON array is typically converted into a repeating XML element with a name you can specify.
What information is lost when converting to XML?
JSON and XML model data differently. Attribute relationships and the distinction between an empty object and an empty array do not survive automatically, and key order may not be meaningful to XML parsers. The tool preserves all values and nesting, but you may need to reshape elements to match a strict schema.
Does my data leave the browser during conversion?
No. The JSON is parsed and the XML is generated entirely on your device, then handed back to you as a download or clipboard copy. Internal configuration and private API payloads never travel to a server at any point, and nothing is retained after conversion.
Why do my tags have names like _1 or underscores?
XML element names cannot start with a digit or contain spaces, so the converter sanitizes illegal keys by prefixing or replacing characters. If your schema expects the original names, rename those keys in the JSON before converting, or adjust the target schema to accept the sanitized form.
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