JSON to Dart Class Generator - Convert JSON to Flutter Dart Models Online
Generate Dart Model Classes from JSON - Flutter Code Generator
Convert JSON data to Dart model classes instantly with powerful JSON to Dart generator. Create Flutter-ready Dart classes with proper serialization support, including fromJson() and toJson() methods. Perfect for Flutter developers working with APIs, data models, and JSON serialization in mobile app development.
Key Features:
- ✅ Instant JSON to Dart class conversion
- ✅ Generate Flutter-ready model classes
- ✅ Automatic fromJson() and toJson() methods
- ✅ Proper Dart naming conventions (camelCase, PascalCase)
- ✅ Support for nested objects and arrays
- ✅ Null-safe Dart code generation
- ✅ Customizable root class name
- ✅ Type inference for Dart primitives
- ✅ File upload support (.json, .txt files)
- ✅ Sample JSON data for testing
- ✅ Copy and download generated Dart files
- ✅ Syntax highlighting for both JSON and Dart
Generated Code Features:
- 🎯 Null-safe Dart syntax with proper type declarations
- 🏗️ Constructor with named parameters
- 📥 fromJson() factory constructor for deserialization
- 📤 toJson() method for serialization
- 🔤 Proper camelCase property naming
- 📝 PascalCase class naming conventions
- 🌳 Nested class generation for complex objects
- 📋 List handling for arrays with proper typing
JSON to Dart Class Generator
Convert JSON data to Dart model classes with serialization support
JSON Input
Dart Classes
Dart classes will appear here
Paste JSON in the input area to generate Dart model classes
How to Convert JSON to Dart Classes - Step by Step Guide
Input Your JSON Data
Start by adding your JSON data that needs to be converted to Dart classes. The tool will analyze the structure and generate appropriate Dart code:
Configure Dart Generation Options
Customize the Dart code generation to match your project requirements:
Generate Dart Classes
Get your complete Dart class definitions ready for use in Flutter or Dart projects:
Frequently Asked Questions
Does the generated Dart code support null safety?
Yes! The tool generates null-safe Dart code by default, using proper nullable types (Type?) and non-nullable types as appropriate. This ensures compatibility with modern Dart and Flutter projects.
Are fromJson and toJson methods included?
Absolutely! The generated classes include both fromJson factory constructors and toJson methods, making it easy to serialize and deserialize JSON data for API calls and data persistence.
Can I use the generated classes in Flutter projects?
Yes! The generated Dart classes are fully compatible with Flutter projects. They follow Dart conventions and include proper constructors, making them perfect for Flutter app development and state management.
How are nested objects and arrays handled?
The tool automatically creates separate classes for nested objects and properly handles arrays with correct Dart types (List<String>, List<int>, etc.). Complex nested structures are fully supported.
Is the JSON to Dart conversion free?
Yes, completely free with no limitations on JSON complexity, file size, or conversion frequency. No registration required, and you can generate unlimited Dart classes from JSON data at no cost.