Free XML to JSON Converter — convert XML into JSON in your browser

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🔄 XML to JSON — Free Online Tool

Convert XML to JSON online, free. XML is a verbose, self-describing markup format used in SOAP, RSS and enterprise systems. JSON is the dominant data-interchange format for web APIs and config. XML to JSON conversion parses your XML against the W3C XML 1.0 grammar (https://www.w3.org/TR/xml/), builds an in-memory model of its keys, nested objects and arrays, then re-serializes it as valid JSON following the ECMA-404 / RFC 8259 conventions. Processing runs in your browser in JavaScript with no upload or server round-trip — no size limit beyond your device's memory, so multi-megabyte documents convert in milliseconds and sensitive payloads never leave your machine. Typical uses include REST/GraphQL API payloads, app & build configuration and logging and analytics events.

🚀 Why use this XML to JSON tool?

It maps the full structure of your XML onto well-formed JSON, following the ECMA-404 / RFC 8259 conventions. 100% free, no registration, and complete privacy — everything runs locally in your browser, so your data never touches a server.

Key Features

⚡Instant, in-browser

Paste XML and convert JSON immediately. Conversion runs client-side, so there is no upload wait and large documents stay fast.

🧩Structure-aware mapping

Nested XML objects, tables and arrays are mapped faithfully onto JSON.

🔒100% private

Your XML never leaves your device — everything is processed locally in JavaScript, with nothing logged or stored.

🆓Free, no signup

Unlimited conversions with no account, no quotas, and no watermark. Works on desktop and mobile.

Popular Use Cases

JSON pipelines

  • • Move XML data into JSON-only tools
  • • REST/GraphQL API payloads
  • • app & build configuration

Where JSON is used

  • • REST/GraphQL API payloads
  • • app & build configuration
  • • logging and analytics events

Quick one-off conversion

  • • Paste XML, copy JSON
  • • No install or CLI needed
  • • Repeatable and shareable

What It Handles

Structure

  • ✓ Nested objects & tables
  • ✓ Arrays / lists
  • ✓ Deeply nested documents

Values

  • ✓ Strings, numbers, booleans
  • ✓ Dates where supported
  • ✓ Null / empty handling

Workflow

  • ✓ Copy or download output
  • ✓ Load an example to try it
  • ✓ Validate & format the input

Worked example

A XML document and its JSON equivalent:

XML input:

<user>
  <name>Alice</name>
  <age>30</age>
  <email>[email protected]</email>
</user>

Output:

{
  "name": "Alice",
  "age": 30,
  "email": "[email protected]"
}

Sources & References

Frequently Asked Questions

How do I convert XML to JSON?

Paste your XML into the editor and press "Convert to JSON". The tool parses it against the W3C XML 1.0 grammar, then re-serializes it as JSON following ECMA-404 / RFC 8259 conventions — instantly and entirely in your browser. You can validate or format the XML first to be sure it is clean.

How is XML structure represented in JSON?

XML has no native numbers, booleans or arrays. Repeated child elements become lists in JSON, attributes and element text become fields, and values stay strings unless JSON coerces them — so review numeric or boolean fields after converting.

Does converting XML to JSON preserve data types?

Numbers, booleans and null are preserved as native JSON types wherever JSON supports them, so standard documents convert losslessly and can be read back into the same structure.

What is the difference between XML and JSON?

XML (eXtensible Markup Language) (XML) — XML is a verbose, self-describing markup format used in SOAP, RSS and enterprise systems. JSON (JavaScript Object Notation) (JSON) — JSON is the dominant data-interchange format for web APIs and config. This converter maps the structure of your XML onto JSON so you can use it for REST/GraphQL API payloads.

Does the converter validate my XML first?

Yes. Invalid XML is flagged with a clear error before anything is converted. Common XML problems to check are matched start and end tags, a single root element, and quoted attribute values. Starting from clean input keeps the generated JSON accurate.

Is my XML data private?

Yes. The entire XML-to-JSON conversion runs locally in your browser in JavaScript — your XML is never uploaded, logged or stored. That matters when the data is something like SOAP web services, which should not leave your machine.

Where can I use the JSON output?

The generated JSON is ready for REST/GraphQL API payloads, app & build configuration and logging and analytics events. Copy or download it and drop it straight into your tooling.

🎓 Pro Tips

  • Tip 1: Validate or format your XML first (the Validate / Format buttons) so the converter works from clean, W3C XML 1.0-conformant input.
  • Tip 2: Keep an eye on type coercion: XML and JSON don't always represent numbers, dates and nulls the same way.
  • Tip 3: Authoritative reference for the input format: W3C XML 1.0 — https://www.w3.org/TR/xml/.
  • Tip 4: For the output, follow the ECMA-404 / RFC 8259 (https://www.rfc-editor.org/rfc/rfc8259) conventions in your codebase.

XML to JSON conversion transforms Extensible Markup Language (XML) documents into JavaScript Object Notation (JSON). JSON is the dominant format for REST APIs and modern web apps, while XML remains common in legacy systems, SOAP services, and configuration files. This free tool converts XML to valid JSON instantly in your browser — no upload, no signup, and your data never leaves your device.

How do I convert XML to JSON?

Converting XML to JSON takes three steps and happens instantly in your browser:

  1. Paste your XML into the input editor on the left (or load the example).
  2. Click Convert — the tool parses the XML tree and maps elements, attributes, and text nodes to JSON keys and values.
  3. Copy or download the JSON output from the right panel. The result is valid, ready to drop into an API or app.

XML vs JSON: what changes

XML represents data with nested tags and attributes and is more verbose; JSON represents the same data with key–value pairs and arrays and is typically smaller and faster to parse in JavaScript. When converting, XML elements become JSON keys, repeated elements become arrays, and XML attributes are commonly mapped to prefixed keys (for example @attribute) so no information is lost.

Key benefits of converting XML to JSON

  • API-ready output: Most modern REST APIs expect JSON, so converting XML responses lets you consume legacy or SOAP data in JavaScript apps without a custom parser.
  • Smaller payloads: JSON drops closing tags and is generally more compact than equivalent XML, reducing bandwidth.
  • Native parsing: JSON maps directly to JavaScript objects via JSON.parse(), with no DOM traversal required.
  • Accurate structure: Element nesting, repeated nodes, and attributes are preserved so the JSON mirrors your original XML.
  • Private and instant: Conversion runs entirely in your browser — nothing is uploaded to a server.

Practical use cases for XML to JSON conversion

  • Modernizing APIs: Convert XML or SOAP responses to JSON so front-end and mobile clients can consume them natively.
  • Legacy data migration: Turn XML configuration files, exports, or feeds into JSON for use in newer systems.
  • Data inspection: JSON is easier to read and diff than verbose XML when debugging payloads.

Start converting XML to JSON

Paste your XML above and convert it to clean, valid JSON in one click. Whether you are integrating a legacy API, migrating data, or just inspecting a payload, this tool gives you accurate JSON instantly and privately.