Are XML namespaces rewritten?

No. Prefixes stay as part of names. We do not rebuild xmlns graphs.

What if a JSON key is not a valid XML name?

It is sanitized when possible, or rejected with a message that names the key.

Will a round trip look identical?

Not always. JSON booleans and null have no single XML mapping.

How are attributes represented?

On XML to JSON they become keys prefixed with @ when Keep attributes is on.

Is there a table preview?

No. You get the JSON or XML text. Spreadsheet converters have the 20-row table.

XML ⇄ JSON

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About XML ⇄ JSON

XML to JSON: paste or upload XML. Options: Keep attributes (@name), Keep root element, Pretty JSON (all default on). Download JSON and Copy. Invalid XML reports Invalid XML at line N. Attributes use an @ prefix. Text nodes use #text. Processing instructions are ignored.

JSON to XML: paste or upload JSON. Root element defaults to root. Pretty print and XML declaration default on (declaration is <?xml version="1.0" encoding="UTF-8"?>). Download XML and Copy. Arrays under root wrap as items/item. JSON keys that are not valid XML names are sanitized or rejected with a message. There is no 20-row table preview on either tab.

How to use XML ⇄ JSON

1Pick a tab. XML to JSON or JSON to XML.
2Paste or upload a file. UTF-8 expected. Upload is 15MB max.
3Set options. Attributes and root one way. Root name, pretty print, and declaration the other.
4Download JSON or Download XML. Copy is on both tabs. Pretty print is on by default.

XML to JSON

Namespaces stay in the names; we do not rewrite xmlns graphs. Booleans and null in a later JSON round trip will not match the original XML types exactly.

JSON to XML

If Root element is still root, a top-level array uses items and item. A named root uses that name and a singular child tag. UTF-8 is expected on paste and upload.

Limits and privacy

XML to JSON and JSON to XML both run in your browser. Each upload is 15MB. Paste is not size-capped. Do not paste secrets you are not allowed to process on this device. No account.

FAQs

Are XML namespaces rewritten?: No. Prefixes stay as part of names. We do not rebuild xmlns graphs.
What if a JSON key is not a valid XML name?: It is sanitized when possible, or rejected with a message that names the key.
Will a round trip look identical?: Not always. JSON booleans and null have no single XML mapping.
How are attributes represented?: On XML to JSON they become keys prefixed with @ when Keep attributes is on.
Is there a table preview?: No. You get the JSON or XML text. Spreadsheet converters have the 20-row table.