JSON to Dart
Convert JSON objects to Dart type definitions, interfaces, or classes automatically.
About JSON to Dart
Generate Dart classes from JSON for Flutter development. Creates classes with final fields, a constructor, fromJson factory constructor, and toJson method. This pattern is the standard for handling API responses in Flutter apps. The json_serializable package can also be used for more complex scenarios with code generation.
FAQ
How are null values handled?
Null values in JSON are mapped to nullable/optional types in the target language. In TypeScript: field: Type | null. In Go: *Type (pointer). In Python: Optional[Type]. In Java: Optional or @Nullable annotation. If a field is null in your sample JSON, consider providing a more complete sample where the field has a real value so the type can be accurately inferred.