Envelope validation comes before serialization
Node types, names, attributes, namespace bindings, document order, and character content are checked before XML is emitted. Unsupported properties do not become surprise markup.
- Input
- JSON
- Limit
- 1 MiB
- Runtime
- Browser
Write XML from the lossless JSON envelope
Validate a lossless-xml-ast-v1 document tree and serialize its declared elements, attributes, text, comments, CDATA, processing instructions, and namespaces as XML.
Local processingNo sign-upNo network access
Convert JSON to XML
Inputs are limited to 1 MiB and stay in this browser tab.
XML document
Nothing is placed in a URL, account, or remote log.
What this tool does
XML 1.0, bounded, and local
Arbitrary JSON has no universal XML representation. This route intentionally accepts one versioned structural envelope so every object has documented meaning and invalid node combinations fail visibly.
Generated source may use normalized spelling
A structurally equivalent document can use different quotes, entity references, empty-element syntax, indentation, or line endings. Compare represented nodes when lexical identity is not required.
Questions and answers
Related XML tools
XML to JSON ConverterProject XML into the lossless-xml-ast-v1 envelope so ordered children, qualified names, attributes, text, comments, CDATA, and processing instructions remain explicit.XML ValidatorParse XML 1.0 syntax and report whether its document structure is well formed without claiming schema or business-rule validity.XML FormatterParse one XML 1.0 document and produce readable indentation without treating text-bearing mixed content as disposable layout.