JSON to Java Class Generator
Convert JSON data to Java POJO classes with getters, setters, constructors, and proper annotations.
JSON Input
JAVA
Java Class Output
Try with sample JSON
Simple Object
Basic user data
Nested Object
Object with nested structures
With Arrays
Lists and collections
API Response
Typical REST response
Privacy First
All conversion happens locally in your browser. Your JSON data never leaves your device.
JSON to Java Class Generator
Our JSON to Java class generator converts JSON data into properly formatted Java POJO (Plain Old Java Object) classes. Generate getters, setters, constructors, and annotations for popular JSON libraries.
Annotation Support
- Jackson -
@JsonPropertyfor field mapping - Gson -
@SerializedNameannotations - Lombok -
@Data,@Getter,@Setter
Features
- Type Inference - Automatically maps JSON types to Java types
- Nested Classes - Generates separate classes for nested objects
- Collections - Handles arrays with
List<T> - Camel Case - Converts snake_case to Java's camelCase
- Nullable Types - Uses wrapper classes for nullable fields
Generated Code Includes
- Package declaration
- Import statements
- Private fields with proper types
- Getter and setter methods
- Default and parameterized constructors
- JSON library annotations