JSON to Java Class

Generate Java POJO classes from JSON instantly. Includes getters, setters, constructors, and proper types.

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Why Use Our Java Generator?

Clean POJOs

Generate properly structured Java classes with correct types and naming.

100% Private

All processing happens in your browser. Your data never leaves your device.

Instant Generation

Generate Java classes instantly. No server uploads or waiting times.

JSON to Java Type Mapping

Type Mapping:

JSON Type Java Type Example
string String "hello"
number (int) int / Integer 42
number (double) double / Double 3.14
boolean boolean / Boolean true
null Object null
array List<T> List<String>
object Nested Class class Address

Example:

Input JSON:

{
  "id": 1,
  "name": "John",
  "active": true
}

Output Java:

public class Root {
    private int id;
    private String name;
    private boolean active;
    
    // getters & setters
}