JSON to Dart Freezed (Flutter) Model Generator
Generate immutable Freezed classes with fromJson/toJson and copyWith for Flutter apps.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. No data is ever transmitted across the network.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
How to Use JSON to Dart Freezed (Flutter) Model Generator
Paste your raw JSON payload into the source editor.
Specify the root Freezed data class name.
Copy or download the generated Freezed model file.
Frequently Asked Questions
Is Freezed 2.4+ supported?
Yes, it generates standard @freezed annotations with factory constructors.
Are nested objects and lists supported?
Yes, nested JSON objects and arrays are extracted into distinct child Freezed classes.
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