JSON to Dart Converter - Flutter Development Tool
Transform JSON data to typed Dart classes ideal for Flutter applications, mobile development, and state management. Supports null safety, serialization methods, and modern Dart patterns.
Convert JSON to Dart classes instantly. Generate Flutter-ready code with null safety, serialization (fromJson/toJson), and type safety for mobile development.
No Dart classes yet. Click "Convert" to generate your first version.
Join thousands of developers who trust our OJF for their daily workflow. Fast, reliable, and completely free.
Everything you need to manage your data
Paste your JSON API response or data structure
Configure class name and generation options
Enable null safety and serialization methods
Choose additional features like copyWith or Equatable
Generate typed Dart classes for your Flutter project
Copy or download the generated .dart files
Import into your Flutter app and use with confidence
| Feature | Online JSON Formatt(OJF) | Other Tools |
|---|---|---|
| Null Safety Support | Full Dart 2.12+ compliance | Basic typing only |
| Method Generation | fromJson, toJson, copyWith | Basic constructors |
| Nested Classes | ||
| Flutter Integration | Optimized for Flutter | Generic Dart only |