JSON to Java

Convert JSON data to Java class definitions for quick Java entity class code generation.

How to Use

  1. Paste or type JSON data into the left input box.
  2. Optionally specify the generated Java class name in the class name input box (default is RootObject).
  3. Click the "Convert to Java" button. The converted Java class code appears on the right.
  4. Click "Copy Result" to quickly copy the converted Java code.
  5. Click "Example" to load sample JSON data.

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About JSON to Java

JSON to Java is a free online code generation tool that helps you quickly convert JSON data to Java class definitions. In Java and Android development, we often need to define corresponding entity classes (POJO) based on API-returned JSON data, which is time-consuming and error-prone when done manually.

Simply paste JSON data and the tool will automatically analyze the JSON structure and generate the corresponding Java class, including private fields and getter/setter methods. Supports conversion of all JSON types including strings, numbers, booleans, arrays, and nested objects. You can customize the generated class name for direct use in your projects. The entire operation runs locally in the browser without uploading data to any server.