JSON to Dart Converter

Convert JSON to Dart classes instantly. Generate Flutter-ready code with null safety, serialization (fromJson/toJson), and type safety for mobile development.

JSON Input

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Size: 0 B
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Try different Dart patterns like Null Safety, fromJson, etc.Try different Dart patterns like Null Safety, fromJson, etc.

Dart Class Outputs

No Dart classes yet. Click "Convert" to generate your first version.

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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.

Key Features of OJF

Everything you need to manage your data

Dart Class Generation Features

  • Convert JSON to typed Dart classes with null safety
  • Automatic property name conversion (snake_case to camelCase)
  • Nested class generation for complex JSON structures
  • Generic List type handling for arrays
  • fromJson() factory constructor generation
  • toJson() method for serialization
  • copyWith() method for immutable updates
  • Equatable package integration for value equality

Flutter Development Integration

  • Flutter-ready classes with proper typing
  • State management compatible (BLoC, Provider, Riverpod)
  • HTTP response model generation
  • Local storage serialization support
  • Custom class and property naming
  • Reserved keyword handling
  • Null safety compliance (Dart 2.12+)
  • Performance optimized code generation

JSON to Dart Conversion for Flutter

1

Paste your JSON API response or data structure

2

Configure class name and generation options

3

Enable null safety and serialization methods

4

Choose additional features like copyWith or Equatable

5

Generate typed Dart classes for your Flutter project

6

Copy or download the generated .dart files

7

Import into your Flutter app and use with confidence

Why Choose Us?

Feature
Online JSON Formatt(OJF)
Other Tools
Null Safety SupportFull Dart 2.12+ complianceBasic typing only
Method GenerationfromJson, toJson, copyWithBasic constructors
Nested Classes
Flutter IntegrationOptimized for FlutterGeneric Dart only

Frequently Asked Questions