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JSON to XML

Build XML from JSON when you already know the root element name.

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What this tool does

XML documents have one root. JSON does not. ConvertPass refuses to invent a <root> wrapper, because that wrapper would then appear in every round-trip and surprise people.

How to use it

  1. Wrap your JSON in a single root key if needed.
  2. Convert and download converted.xml.
  3. Validate the XML in your own toolchain if you need XSD checks.

Supported input

  • JSON object with exactly one top-level key, UTF-8, up to 2 MB

Output

  • XML 1.0 declaration plus formatted elements

Privacy

This tool processes files and text locally in your browser. Your content is not uploaded or stored by this site.

ConvertPass does not include your input in analytics, URLs, or error reports. Encoding: UTF-8. Limit: 2 MB (2.00 MB).

Limitations

  • Arrays become repeated sibling elements with the same name.
  • JSON keys that are not valid XML names will fail.

Example

Input
{"note":{"@_importance":"high","to":"Ada"}}
Output
<?xml version="1.0" encoding="UTF-8"?>
<note importance="high">
  <to>Ada</to>
</note>

Troubleshooting

It asks for a single top-level key
Wrap the object: {"payload": { ... }}. Choose a name that matches your schema.

FAQ

Why not auto-wrap with <root>?

Silent wrapping makes round-trips look like the source JSON had a root field it never had. Being strict here is a data-integrity choice.

How do I emit attributes?

Prefix the key with @_, matching the XML to JSON tool.

Will HTML class names work as keys?

XML names cannot start with a number and cannot contain spaces. Rename keys first.

Is the output canonical XML?

No. It is formatted for reading. Canonicalisation for signatures is a different process.

Related tools

  • XML to JSON

    Map XML into JSON while keeping attributes and text nodes visible.

  • JSON formatter

    Pretty-print JSON locally with clear parse errors and a one-click copy.

  • JSON to YAML

    Turn JSON into readable YAML without leaving your machine.

Related guides

Related formats

Last reviewed 16 August 2026. Report a problem. Reports do not include your input.