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JSON to XML

Convert JSON into well-formed, indented XML with custom element names.

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.json, .txt, .csv, .tsv, .xlsx, .xls, .html, .xml, .log · local only · up to 1000 MB total · Excel up to 256 MB

The JSON to XML converter transforms JSON objects and arrays into clean, well-formed XML the moment you paste your data. JSON dominates modern web APIs, but plenty of enterprise systems, configuration formats, SOAP services and legacy integrations still expect XML, so a fast and accurate bridge between the two formats removes a tedious manual step from everyday development work.

This tool is built for developers, integration engineers and analysts who routinely move data between services that disagree on format. It walks the entire JSON structure recursively, turning object keys into element names, wrapping array members in repeatable item elements, and escaping the five reserved XML characters so the result is always valid markup you can drop straight into a request body, document or feed.

Everything runs locally in your browser using JavaScript, so even sensitive payloads such as customer records, order data or internal configuration never leave your device or touch a server. You paste JSON, choose the root and item element names you want, pick an indent size, and the formatted XML appears instantly with a clear error message if the JSON cannot be parsed.

Features of JSON to XML

  • Converts nested JSON objects and arrays of any depth into correctly structured, hierarchical XML elements.
  • Lets you set a custom root element name so the output wraps cleanly inside the container your system expects.
  • Wraps array members in a configurable item element name so repeated values become repeatable child nodes.
  • Escapes the five reserved XML characters automatically so ampersands, quotes and angle brackets never break the markup.
  • Offers two-space or four-space indentation so the output matches your project's formatting conventions exactly.
  • Includes an optional XML declaration line so you can produce a complete document or a bare fragment as needed.
  • Sanitizes invalid characters in keys into safe element names so unusual JSON property names still produce valid XML.
  • Runs entirely in your browser with no uploads, accounts or limits, keeping sensitive JSON payloads on your device.

How to use JSON to XML

  1. Paste your JSON into the input box, or upload a .json or .txt file containing the data you want to convert.
  2. Set the root element name that should wrap the whole document, using a value your target system expects.
  3. Choose the item element name used for the members of any JSON arrays so repeated entries are clearly labelled.
  4. Pick two-space or four-space indentation and decide whether to include the XML declaration line at the top.
  5. Watch the well-formed XML appear instantly in the output panel, updating live as you adjust the options.
  6. Copy the XML to your clipboard or download it as a file to use in your request, document or configuration.

Benefits of JSON to XML

  • Integration engineers feed JSON data into SOAP services and legacy systems that only accept XML payloads.
  • Developers generate XML fixtures and sample documents from JSON without hand-writing repetitive markup.
  • Analysts reshape API responses into XML for tools, reports and pipelines that consume that format natively.
  • Teams migrating between systems convert stored JSON into XML records during one-off data transformation tasks.
  • Anyone handling private data can convert payloads locally without uploading sensitive information anywhere.
  • Engineers prototype quickly by pasting JSON and instantly seeing the equivalent XML structure side by side.

JSON and XML describe the same kinds of data in different ways, and converting between them is mostly about mapping keys to element names. This tool keeps that mapping predictable: each object becomes a set of nested elements, each array becomes a parent element containing repeated item nodes, and primitive values become the text content of their element. The result is the structure most XML consumers expect.

Because XML element names cannot contain spaces or many punctuation characters, any JSON key that would be illegal as a tag is sanitized into a safe equivalent automatically, and names that would otherwise start with a digit are prefixed so they remain valid. This means even messy, machine-generated JSON keys produce markup that parsers accept without complaint.

All conversion happens locally in your browser, so nothing you paste or upload is transmitted, logged or stored anywhere. The converter is accurate for any valid JSON, but malformed input such as a trailing comma or an unquoted key will produce a parse error describing the problem, which you can fix in the source and convert again immediately.

Questions about JSON to XML

How are JSON arrays represented in the XML output?
Each array becomes a parent element named after its key, and every member of the array is wrapped in a repeatable child element whose name you control with the item option. This produces the repeated-node structure that XML consumers expect when reading lists of values.
Can I choose the root and item element names?
Yes. You can set the root element that wraps the whole document and the item element used for array members. Both are sanitized into valid XML names automatically, so even unusual values still produce well-formed markup that parsers accept.
Does it escape special characters correctly?
It does. The five reserved XML characters - ampersand, less-than, greater-than, double quote and apostrophe - are escaped into their entity equivalents in all text content, so values containing those symbols never break the resulting markup.
What happens to JSON keys that aren't valid XML names?
Characters that are not allowed in element names are replaced with underscores, and names that would start with a digit are prefixed so they become valid. This ensures machine-generated or messy JSON keys still convert into markup that every XML parser will accept.
Why am I getting an invalid JSON error?
The input could not be parsed as JSON, usually because of a trailing comma, an unquoted key, a single quote where a double quote is required, or a missing bracket. The error message describes the issue so you can correct the source and convert it again.
Is my JSON data kept private?
Completely. All parsing and conversion happen in your browser, and nothing you paste or upload is ever sent to a server, logged or stored. This makes the converter safe for confidential payloads such as customer data, orders and internal configuration.
How your data is handled: This tool runs entirely in your browser. Nothing is uploaded or stored on our servers.

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Guides and related topics for JSON to XML

Glossary

What is XML (Extensible Markup Language)?

XML is a self-describing markup format that stores hierarchical data inside nested tags, still widely used in sitemaps, feeds, and enterprise systems.