How do I convert JSON to XML online?

Paste JSON or drop a .json file with the direction set to JSON to XML. Object keys become elements and arrays repeat the tag. You can set the Root element name, Indentation and the declaration, then copy or download.

How do I convert XML to JSON and keep the attributes?

Switch direction with the swap button and paste your XML. Attributes become keys with the Attribute prefix (default @) and element text alongside attributes becomes #text. Repeated tags become arrays.

How do I write XML attributes when converting from JSON?

Name the JSON key with the attribute prefix, which is @ by default, for example an @id key. It is emitted as an attribute on the parent element. You can change the prefix in Attribute prefix.

Why were some of my JSON key names changed in the XML output?

XML element names must be valid, so keys that are not valid names are changed. The tool shows a note listing the renamed names, for example a key starting with a digit or containing spaces.

Why do my leading zeros or large numbers change when converting XML to JSON?

Numbers and booleans are converted to JSON types, but leading zeros and very large numbers stay as strings to avoid data loss. Turn on Keep all XML values as text to keep every value as a string.

Yes. Every tool is free to use, with no account and no credit card. The work runs on your device rather than on our servers, which is what keeps it free to run.

Does it work on mobile?

Yes. It runs in current mobile browsers on iOS and Android, with nothing to install.

🔁

Free JSON to XML Converter

Convert JSON to XML and XML to JSON, both directions, with attributes and arrays preserved. Runs entirely in your browser — nothing is uploaded.

Runs in your browserNo sign-up, no pop-upsNo login requiredFree forever

Works offline once loaded

Drop a JSON or XML file (or paste below)

JSON, XML · processed on your device

or press Ctrl+V to paste from your clipboard

Browse files

Root element nameAttribute prefixIndentationInclude <?xml?> declaration

JSON input

XML output

<?xml version="1.0" encoding="UTF-8"?>
<book id="42">
  <title>Brave New World</title>
  <author>Huxley</author>
  <year>1932</year>
  <inPrint>true</inPrint>
</book>

💡 Attributes map to @name keys and element text to #text; repeated tags become arrays. Use ⇄ to flip the direction and round-trip your data. Everything runs in your browser.

Common uses

Convert JSON to XMLTurn a JSON object into well-formed XML.
Convert XML to JSONParse XML into clean, typed JSON.
Bridge JSON and XML APIsConvert payloads between services that speak JSON and XML.
Convert Config FilesMove configuration between JSON and XML formats.
Compare JSON and XML StructuresSee how the same data looks in JSON versus XML.

How It Works

JSON and XML are the two most common data interchange formats, and you frequently need to move between them. This converts in both directions, in your browser.

1
You paste JSON or XML
Pick a direction with the ⇄ toggle. The input is parsed locally — JSON with JSON.parse, XML with the browser's DOMParser.
2
It maps the structures
Going to XML, object keys become elements, "@name" keys become attributes, and arrays repeat a tag. Going to JSON, attributes become "@name" keys, repeated tags become arrays, and numbers/booleans are coerced.
3
You get clean, indented output
The result is pretty-printed and ready to use.
4
Round-trip if you like
The ⇄ button feeds the output back as input so you can convert back and check.

Config and data files can be sensitive. Both directions run entirely on your device — nothing is uploaded.

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