JSON to Entity Class

Convert JSON to Java, Kotlin, C#, TypeScript, Go, Python, Swift, Dart, Rust, PHP, Protobuf entity classes

Category

JSON Tools

How to Use

  1. Enter JSON data on the left
  2. Select target programming language
  3. Entity class code is generated automatically on the right

Examples

  • Generate Java entity

    Input: {"name":"Alice","age":30}

    Output: public class RootEntity { private String name; private Integer age; ... }

  • Generate TypeScript interface

    Input: {"id":1,"active":true}

    Output: export interface RootEntity { id: number; active: boolean; }

FAQ

What languages are supported?
Java, Kotlin, C#, TypeScript, Go, Python, Swift, Dart, Rust, PHP — 10 languages total.
How are types inferred?
Strings → String, integers → Integer/Int/number, floats → Double/Float, booleans → Boolean/bool, date strings → Date types, arrays → List, nested objects → inner classes.
How are nested objects handled?
Nested objects automatically generate corresponding inner classes referenced in the main class.

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