JSON → XML
レガシー連携用に XML へ
JSON入力
XML出力
Bridge JSON apps to XML-only systems
Plenty of enterprise integrations still require XML — SOAP services, government APIs, and legacy B2B feeds, to name a few. Converting JSON to well-formed XML gives you a document that includes the standard XML declaration, escaped values, and a sensible mapping between objects, arrays, and elements.
Use the converter when you need to
Send data to a SOAP or legacy API
Many backend systems still accept only XML — convert your JSON payload before wrapping it in a SOAP envelope.
Generate XML feeds for partners
B2B partners often expect XML feeds for product, order, or pricing data — produce them from your JSON source of truth.
Integrate with government or banking endpoints
Regulatory and financial APIs often require XML — bridge the gap without maintaining a second data model.
How to convert JSON to XML quickly
- 1
Paste the JSON document into the editor.
- 2
Click Convert to produce well-formed XML with a root element and standard declaration.
- 3
Copy the XML or download it for use in your integration.
Keep going
Convert XML back to JSON
Process XML responses from the same legacy systems by converting them to JSON.
Convert to YAML instead
Pick YAML when the destination is a DevOps tool rather than a SOAP service.
Format JSON before converting
Clean up the source so the resulting XML structure is easier to scan.
Render as an HTML table
Display the same data as a browser-friendly table rather than XML.
Common JSON-to-XML workflows
Convert your JSON request to XML and slot it into the SOAP body without writing a custom serializer.
Generate the partner-required XML feed nightly from your JSON-based internal API.
Keep your modern code in JSON and convert at the boundary while you replace the old system over time.
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よくある質問
XMLは、企業向けシステム、SOAP API、レガシー連携などで今も必要になることがあります。XMLしか受け付けない相手に合わせる必要がある場合、このツールでJSONを即座に整形式（well-formed）のXMLへ変換できます。
配列の各要素は、同名のXML要素として繰り返し出力されます。例：{"items":[1,2,3]} はルート要素の中で <items>1</items><items>2</items><items>3</items> のようになります。
はい。先頭に標準のXML宣言 <?xml version="1.0" encoding="UTF-8"?> が付くため、XMLを受け取るアプリケーションでそのまま利用できます。
JSONのnullは空要素（自己終了タグ）に変換されます。たとえば {"value":null} は <value/> になります。