JSON to XML Schema (XSD) Generator

Generate standard W3C XML Schema Definition (XSD) documents from JSON objects and XML data.

JSON to XML Schema (XSD) Generator

Generate standard W3C XML Schema Definition (XSD) documents from JSON objects and XML data.

Root Element Name:

Input JSON Payload:

Generated W3C XML Schema (XSD):

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
  <xs:element name="Root">
    <xs:complexType>
      <xs:sequence>
        <xs:element name="customerId" type="xs:integer" />
        <xs:element name="name" type="xs:string" />
        <xs:element name="active" type="xs:boolean" />
        <xs:element name="balance" type="xs:decimal" />
        <xs:element name="address">
          <xs:complexType>
            <xs:sequence>
              <xs:element name="city" type="xs:string" />
              <xs:element name="zip" type="xs:string" />
            </xs:sequence>
          </xs:complexType>
        </xs:element>
        <xs:element name="orders" minOccurs="0" maxOccurs="unbounded">
          <xs:complexType>
            <xs:sequence>
              <xs:element name="orderId" type="xs:integer" />
              <xs:element name="item" type="xs:string" />
              <xs:element name="price" type="xs:decimal" />
            </xs:sequence>
          </xs:complexType>
        </xs:element>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
</xs:schema>

About This Tool

The JSON to XML Schema Generator analyzes JSON structures and generates valid W3C XML Schema Definition (XSD) models with element type inference (`xs:string`, `xs:integer`, `xs:decimal`, `xs:boolean`, `xs:complexType`).

Key Features

Infers strict XSD primitive types from sample JSON payloads

Handles nested objects (`xs:complexType`) and arrays (`maxOccurs='unbounded'`)

Generates valid `xmlns:xs='http://www.w3.org/2001/XMLSchema'` schema definitions

Instant copy for enterprise SOAP, EDI, and XML validation

How to Use This Tool

Paste sample JSON payload into the input box.
Instantly view the generated W3C XML Schema (XSD).
Save as `.xsd` file for validating incoming XML payloads.

Why Use This Tool

Quickly generate enterprise XSD contracts for SOAP web services and XML document validation.
Enforce strict schema validation rules on legacy systems.

Pro Tips

Array fields in JSON are automatically given `minOccurs='0'` and `maxOccurs='unbounded'` in the XSD.

Frequently Asked Questions

What is an XML Schema Definition (XSD)?

XSD is a W3C recommendation that formally describes the elements, attributes, and data types allowed within an XML document.

How does type inference work from JSON to XSD?

Whole numbers map to `xs:integer`, floating point numbers map to `xs:decimal`, booleans map to `xs:boolean`, objects map to `xs:complexType`, and strings map to `xs:string`.

JSON to XML Schema (XSD) Generator