Reference
JSON Schema reference
Master the full power of JSON Schema with our reference documentation.
From basic data types to advanced techniques like conditional validation and schema composition, you will learn everything about JSON Schema keywords through clear explanations and examples. By learning best practices for building clear, scalable, and easy-to-maintain schemas, you will ensure that your JSON data is both robust and flexible.
Keywords
Browse our comprehensive index of JSON Schema keywords, each linking to detailed documentation.
Read More
Type-specific Keywords
Become profficient at using the type keyword to validate your data.
Read More
Dialect and vocabulary declaration
Learn how to declare the JSON Schema dialect and vocabulary your schema uses, ensuring compatibility and proper validation.
Read More
Enumerated and Constant Values
Ensure data consistency and accuracy, by defining value sets and fixed values for your JSON properties.
Read More
Annotations and comments
Enhance your JSON Schemas with annotations and comments. Learn how to add descriptions, defaults, examples, and more to improve readability and maintainability.
Read More
Conditional schema validation
Control validation based on property presence and values using conditional subschemas.
Read More
Schema composition
Learn how to combine JSON Schemas using modular and boolean techniques to create flexible and maintainable data models.
Read More
String-encoding non-JSON data
Describe and handle non-JSON data within JSON strings using media type and encoding information.
Read More
Learn JSON Schema
Improve your JSON Schema skills with this reference, crafted by our TSC members, offering practical examples, best practices, and common pitfalls.
Read More
Need Help?
Did you find these docs helpful?
Help us make our docs great!
At JSON Schema, we value docs contributions as much as every other type of contribution!
Still Need Help?
Learning JSON Schema is often confusing, but don't worry, we are here to help!.