JSON to Java Class
Generate Java POJOs (Plain Old Java Objects) from JSON. Supports getters/setters, Jackson annotations, and Serializable.
About this tool
Convert JSON into Java POJO classes with fields and getters/setters ready for Jackson or similar libraries. Speeds up backend model creation.
Example use case: Turn a REST response into Java classes for a Spring Boot service.
Root class:
Package:
Frequently Asked Questions
What is a POJO?▾
A POJO (Plain Old Java Object) is a simple Java class that represents data. It typically has private fields, public getters and setters, and no special framework dependencies.
What are Jackson annotations?▾
Jackson is the most popular Java JSON library. @JsonProperty maps JSON field names to Java field names (e.g., camelCase vs snake_case). @JsonIgnoreProperties ignores unknown fields.
How are nested objects handled?▾
Nested JSON objects become separate Java classes. Each class is shown with a file separator comment indicating it should be a separate .java file.