The XML Schema Generator creates an XSD (XML Schema Definition) automatically from any XML document you provide. Paste your XML and get a complete XSD schema describing its element structure, nesting, and inferred data types.
XSD schemas are used to validate XML documents in enterprise systems, SOAP web services, B2B data exchanges, configuration file validation, and document management systems.
Data types are inferred automatically: numeric content becomes xs:integer or xs:decimal, boolean-like values become xs:boolean, and everything else defaults to xs:string.
Everything runs in your browser. Your data never leaves your device.
Paste an XML document into the input panel.
The XSD schema is generated instantly.
Copy the schema and use it for XML validation.
XSD (XML Schema Definition) and JSON Schema serve the same core purpose — describing the expected structure of a document — but for different data formats. XSD is the standard for XML validation in enterprise systems, SOAP web services, and B2B data exchange, with its own namespace-based syntax and long history in Java and .NET ecosystems.
JSON Schema does the equivalent job for JSON documents and is the standard in modern web APIs. If your system is migrating from XML to JSON, generating both an XSD from your current XML and a JSON Schema from the equivalent JSON is a useful way to confirm the two representations describe the same data structure.
XSD 1.0, using the standard W3C XML Schema namespace (http://www.w3.org/2001/XMLSchema).
Yes — numeric content becomes xs:integer or xs:decimal, boolean-like values (true/false, 0/1) become xs:boolean, and everything else becomes xs:string.
Yes — nested elements are represented as complex types with their own element definitions in the schema.
Yes — the generated XSD is compatible with javax.xml.validation (JAXP) and other standard Java XML validation libraries.
Yes — element attributes are detected and added as xs:attribute declarations within the complex type definition.
Yes — generate an XSD from a known-good sample of the partner's XML format, then use it with any standard XML validator to check that future messages match the expected structure.
Yes — when an element repeats multiple times in the sample XML, the generator infers a maxOccurs setting that allows repetition in the schema.
Yes — the generated schema is a starting point. Add restrictions like pattern, minLength, or enumeration values manually to enforce stricter rules than a single example can reveal.