formatJSONonline

JSON to Dart Converter

Convert JSON data to Dart classes with support for json_serializable, Freezed, and other serialization libraries. Perfect for Flutter developers working with APIs.

JSON Input
Paste your JSON data or upload a file to generate Dart classes
Generation Options
Generated Dart Code
Ready-to-use Dart classes for your Flutter project
// Generated Dart code will appear here...
Features
Null safety support
Nested object handling
Array type detection
Multiple serialization options
Code generation
Flutter integration