What is a JSON to Dart converter?

It is a tool that transforms JSON objects or arrays into Dart classes with fromJson and toJson methods, ready for use in Flutter or Dart projects.

Is this JSON to Dart converter free?

Yes, it is completely free and runs entirely in your browser without requiring any installation.

Does this tool support nested JSON objects?

Yes, nested objects and arrays are automatically converted into nested Dart classes with proper typing.

Can I generate Dart models with null safety?

Yes, the tool supports null safety. Fields that may be null in JSON are appended with ? in Dart.

Can I make fields private or required?

Yes, you can choose to mark fields as private (using underscore prefix) or required in the constructor to enforce runtime safety.

How are arrays of objects handled?

Arrays of objects are converted into Dart List types with nested classes generated for each object.

Is the conversion secure?

Absolutely. All operations are performed client-side in your browser; no data is uploaded to any server.

Does this work for Flutter projects?

Yes, the generated Dart classes are fully compatible with Flutter and can be directly used for API responses and state management.

JSON to Dart Converter - Advance Dart Model Generation

Instantly convert JSON data into fully functional Dart classes with fromJson() and toJson() methods, supporting nested objects, arrays, and null-safety. Perfect for Flutter and Dart developers working with APIs, databases, or structured configuration files — no setup required.

Null Safety Private Fields Required Fields Default Values

Copy to Clipboard Download Dart

Convert JSON data into fully functional Dart classes instantly with this online JSON to Dart converter. Generate type-safe classes with fromJson() and toJson() methods, supporting nested objects, arrays, and optional null-safety.

This tool is ideal for Flutter and Dart developers working with APIs, databases, or configuration files. It eliminates manual class creation, ensures consistent type safety, and speeds up development for both frontend and backend projects. Nested JSON objects and arrays are converted into structured Dart models automatically.

Generate Dart classes from JSON objects or arrays
Supports nested objects and arrays with proper class generation
Optional null-safety, private fields, required fields, and default values
Copy or download generated Dart code instantly
Works in-browser without sending data to a server