Free JSON to Java Class Generator Online
Convert JSON data to Java POJO classes automatically. Supports nested objects, arrays, and Lombok annotations. Download .java files instantly for free.
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What is JSON to Java?
JSON to Java is a free online tool that generates Java POJO (Plain Old Java Object) classes from JSON data. It creates properly typed fields with getters and setters, or optionally uses Lombok annotations to reduce boilerplate. Ideal for Java developers working with REST APIs or JSON configuration files.
How to Use JSON to Java
- Paste your JSON data into the input area
- Set the root class name
- Toggle Lombok annotations if desired
- Click 'Convert' and copy or download the .java file
JSON to Java Features
- Generates proper Java POJO classes
- Optional Lombok @Data annotation support
- Nested objects generate separate inner classes
- Arrays map to List<T> with correct types
- camelCase field names following Java conventions
JSON to Java FAQ
What is a POJO?
A POJO (Plain Old Java Object) is a simple Java class with private fields and public getters/setters, used to represent data structures.
Do I need Lombok?
Lombok is optional. Without it, the tool generates standard getters and setters. With Lombok, @Data replaces all boilerplate.
Is my data secure?
Yes! All conversion happens in your browser. Your data is never sent to any server.