JSON to XML Converter Online
Transform JSON objects into XML for legacy systems, API contracts, data feeds, and document pipelines.
Private, browser-based XML generation.
How to convert JSON to XML
Paste a JSON object or array into the left panel and choose how the XML should be structured. The converter accepts common JSON shapes, including nested objects and arrays, and maps them to XML elements. You can set the root element name, pick the item tag that represents each array entry, and decide whether attributes are included using keys prefixed with @_ . This makes it easier to match the format expected by a legacy API, a feed reader, or a content pipeline that still depends on markup.
For compatibility, the converter sanitizes element names so tags remain valid XML and escapes reserved characters such as ampersands, less-than signs, and quotes. You can also add the XML declaration header if you want the output to look like a complete XML document rather than just a payload fragment. The output is shown immediately in the right panel so you can check the structure before downloading or copying it.
Once the XML looks correct, you can save it as an .xml file or paste it into an external system. This keeps the process in your browser and avoids sending sensitive configuration, inventory, or API payload data to a server.
Before and after example
Suppose you have a JSON order object with nested customer and line-item details. The converter can turn that structure into a root order element with nested customer and item tags while preserving important attributes such as id or status. A system that expects XML can consume the generated document without additional formatting work, and the file can be used in a workflow that still depends on XML-based interchange.
Common use cases
XML remains common in enterprise systems, legacy APIs, and document-transfer workflows. Government integrations, partner feeds, e-commerce platforms, and some enterprise middleware still rely on XML for structure, validation, and schema compatibility. Developers also use it to prepare test payloads when migrating from JSON-based APIs to XML-based endpoints.
Because the generation is client-side, it is useful when handling private customer data, internal configuration, or internal APIs that must not leave the browser. The output is quick to generate and easy to validate before it is transferred elsewhere.
Things to watch out for
The XML format is stricter than JSON. Attributes and nested elements must be named carefully, and arrays are typically represented as repeated child tags. If your JSON contains special characters or keys with spaces, the converter normalizes them so they remain valid XML names. When target systems are sensitive to whitespace or indentation, check the indentation option and the declaration toggle before sending the output to a third party.
Frequently asked questions
Can I control the root and item element names?
Yes. You can choose the root element name and the item tag used for arrays so the generated XML matches your API contract.
How are attributes handled?
Keys that begin with @_ are rendered as XML attributes, which is useful when you need metadata like id or type on each node.
Does the converter sanitize invalid tags?
Yes. Names are normalized so spaces, leading digits, and special characters are converted into valid XML-safe labels.
Can I include the XML declaration?
Yes. Toggle the declaration on or off depending on whether the output is going into a document or a payload consumed by an API.
Is the output safe for sensitive data?
Yes. The conversion runs locally in the browser and never sends your data to a backend.
Guides
- How to Format and Validate JSON Online Learn to format, minify and validate JSON, fix common syntax errors, and convert it to CSV, YAML or XML using browser-based developer tools.
- JSON vs XML vs YAML: Differences and When to Use Each Compare JSON, XML and YAML with the same data in all three formats, a comparison table, common pitfalls and tips for converting between them.