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ZeroUpload
Data & Dev Config • Zero-Server RAM Execution

Convert JSON to XML Online - Free, Local & Instant

Instant JSON (.json) to XML (.xml) converter. 100% client-side processing in your browser RAM — zero file uploads, full privacy, drag & drop or paste raw text.

JSON → XML ⇄ Swap (XML → JSON)

Technical Comparison: JSON vs XML

Data & Dev Config
Specification JSON (Source) XML (Target)
Full Specification JavaScript Object Notation Extensible Markup Language
File Extension & MIME .json (application/json) .xml (application/xml)
Data Typing Model Strict (strings, numbers, booleans, arrays, objects, null) Element & @attribute nodes with text/CDATA payloads
Structure & Hierarchy Deeply nested trees & arrays Tree of parent/child elements and attributes
Comments Support Not supported in RFC 8259 (supported via relaxed parser) Supported (<!-- comment -->)
Primary Ecosystem REST APIs, web apps, NoSQL document stores, modern configs Enterprise SOAP feeds, RSS/Atom, Android layouts, Maven POM

JSON to XML — Before & After Example

Before (JSON Input)
[
  {
    "id": 1,
    "name": "Alice Johnson",
    "email": "alice@example.com",
    "role": "admin",
    "active": true,
    "score": 98.5,
    "address": {
      "city": "Berlin",
      "country": "DE"
    }
  },
  {
    "id": 2,
    "name": "Bob Smith",
    "email": "bob@example.com",
    "role": "editor",
    "active": false,
    "score": 87,
    "address": {
      "city": "Austin",
      "country": "US"
    }
  },
  {
    "id": 3,
    "name": "Chiara Rossi",
    "email": "chiara@example.com",
    "role": "viewer",
    "active": true,
    "score": 91.25,
    "address": {
      "city": "Milan",
      "country": "IT"
    }
  }
]
After (XML Output)
<?xml version="1.0" encoding="UTF-8"?>
<root>
  <item>
    <id>1</id>
    <name>Alice Johnson</name>
    <email>alice@example.com</email>
    <role>admin</role>
    <active>true</active>
    <score>98.5</score>
    <address>
      <city>Berlin</city>
      <country>DE</country>
    </address>
  </item>
  <item>
    <id>2</id>
    <name>Bob Smith</name>
    <email>bob@example.com</email>
    <role>editor</role>
    <active>false</active>
    <score>87</score>
    <address>
      <city>Austin</city>
      <country>US</country>
    </address>
  </item>
  <item>
    <id>3</id>
    <name>Chiara Rossi</name>
    <email>chiara@example.com</email>
    <role>viewer</role>
    <active>true</active>
    <score>91.25</score>
    <address>
      <city>Milan</city>
      <country>IT</country>
    </address>
  </item>
</root>

Frequently Asked Questions: JSON to XML

How do I convert JSON to XML online without uploading sensitive files? ▾

Paste your JSON data or drag and drop a .json file into the converter above. ZeroUpload parses JSON and serializes XML 100% inside your browser RAM using local JavaScript—no bytes are ever sent to an external server.

How are nested objects or tabular columns mapped between JSON and XML? ▾

When converting hierarchical structures (Deeply nested trees & arrays) and tabular or config formats (Tree of parent/child elements and attributes), our engine automatically flattens or unflattens dot-separated keys (such as address.city) and preserves numbers, booleans, arrays, and null values.

Is this JSON to XML converter free for commercial and production config files? ▾

Yes. The tool is completely free, requires no account or API key, and works offline once loaded. Because execution happens in local memory, it is safe for proprietary JSON, database exports, and production secrets.

Can I convert XML back to JSON? ▾

Yes! Click the "Swap (XML → JSON)" button at the top of the workspace or use the reverse converter link at the bottom of this page for bidirectional conversion.