JSON Workbench

Generate Dart Classes for Flutter

Building Flutter apps with json_serializable requires properly structured Dart model classes. Our JSON to Dart generator instantly creates production-ready classes with factory fromJson() constructors and toJson() methods that map cleanly to your API responses.

The engine handles nested objects recursively, generates @JsonKey annotations for mismatched field names, and types arrays as List<T> with proper null-safety using nullable ? types throughout.