JSON to Dart Class

Generate Dart/Flutter class boilerplate with fromJson and toJson methods.

Drag & drop a JSON file here, or click to browse

File is read locally — nothing is uploaded to any server

Features

  • JSON File Upload: Upload a .json file directly — read locally in your browser, nothing is sent to any server.
  • Drag & Drop: Drag and drop a JSON file onto the drop zone for quick loading.
  • Boilerplate Generation: Generates separate Dart classes for nested objects.
  • Serialization Support: Includes fromJson and toJson methods factory constructors.
  • Type Safety: Infers types (String, int, double, bool, List) from JSON values.
  • Naming Conventions: Converts JSON keys (snake_case) to Dart property names (camelCase).

How to Use

  • Upload a JSON file using the file picker, or drag & drop a file onto the drop zone.
  • Alternatively, paste JSON into the input box.
  • The tool will generate a Root class and any necessary nested classes.
  • Copy the code into your Flutter/Dart project (e.g., in a model file).