Altova XMLSpy is a powerful XSD tool featuring the leading graphical XSD editor.

- World's leading graphical XSD editor
- AI Assistant for creating XSDs
- Support for XML Schema 1.0 / 1.1
- Conversion to/from JSON Schema
- SmartFix validation with automatic error correction
- Conversion between DTD and XSD
- Generation of XSDs from DTD or XML instances
- Generation of sample XML instances
- Conversion to/from database schemas
- Schema flattener & subset creator
- Comprehensive schema documentation generation

