JSON ↔ XML Converter
Convert JSON to XML and XML to JSON instantly. Two-way conversion, live preview, and 100% browser-based — your data never leaves your device.
Why Convert Between JSON and XML?
JSON and XML are the two most common data interchange formats used on the web. JSON powers most modern REST APIs, mobile apps, and JavaScript frontends because it is lightweight and maps directly to native language objects. XML, on the other hand, is still dominant in enterprise systems, SOAP web services, government standards, configuration files, and industries like finance, healthcare, and publishing.
Developers frequently need to move data between these two worlds — consuming a legacy SOAP API and converting its XML response to JSON for a modern React app, or sending JSON from a mobile client to an enterprise system that expects XML. This converter does both instantly in your browser, with no uploads and no wait time.
How to Use the Converter
- Pick a direction — Choose JSON → XML or XML → JSON using the toggle at the top.
- Paste your data — Drop your JSON or XML into the left panel. Conversion happens instantly.
- Copy or download — Use the buttons above the output to copy to clipboard or download as a file.
- Swap as needed — Click ⇄ Swap to use the output as new input and reverse the conversion.
Features
- Two-way conversion — JSON → XML and XML → JSON, switchable with one click.
- Live preview — See the result update as you type.
- Attribute support — XML attributes are preserved as
@_nameJSON fields for lossless round-trips. - Pretty formatting — Output is auto-indented for readability.
- Validation — Invalid JSON or XML triggers a clear error message.
- Copy & download — One-click copy to clipboard or download as a file.
- 100% client-side — All conversion happens in your browser. Nothing is ever uploaded.
Common Use Cases
Modernizing legacy APIs — Convert SOAP/XML responses to JSON before feeding them into a modern frontend framework.
B2B integrations — Many enterprise partners still exchange data in XML. Translate JSON from your API into XML for downstream consumers.
Configuration migration — Move between XML-based configuration (like web.config) and modern JSON configuration files.
Learning and debugging — Inspect the structure of either format side-by-side to understand data shape before writing parser code.
Frequently Asked Questions
How do I convert JSON to XML?
Paste your JSON into the input box on the left. The tool instantly converts it to XML on the right. You can then copy or download the result. No signup, no uploads.
How do I convert XML to JSON?
Switch the direction to XML → JSON, paste your XML, and the JSON equivalent appears immediately. Arrays, attributes, and nested elements are all preserved.
Is my data safe?
Yes. All conversion happens 100% in your browser. Your JSON and XML never leave your device — no server uploads, no logs, no tracking.
Does the tool handle XML attributes?
Yes. XML attributes are preserved as JSON fields with the @_ prefix. Converting back from JSON to XML uses the same convention.
Can I convert large files?
Yes. Since everything runs in your browser, the tool can handle large JSON and XML documents quickly without size limits imposed by a server.