JSON to Dart Model

What is JSON to Dart Model?

JSON to Dart Model turns sample JSON into a practical starter artifact for API development. Generate Dart model classes with fromJson helpers.

Generated output is meant to accelerate scaffolding. Review naming, optional fields, validation rules, and framework-specific annotations before production use.

How to use JSON to Dart Model

Paste a representative JSON payload and run JSON to Dart Model. Copy the generated model, struct, class, dataclass, or mock definition into your codebase, then refine it for your project conventions.

Available actions

• Generate Dart
• Import JSON file
• Copy output
• Download output
• Create expiring JSON share link
• Collapse all
• Expand all
• Escape JSON string
• Unescape JSON string
• Generate sample JSON
• Simple sample
• Medium sample
• Complex sample
• Back to top
• Back to bottom
• Find in editor
• Previous match
• Next match
• Replace all
• Close search panel

Example

{"id":1,"name":"Ada","roles":["admin"],"active":true}

class Root {
  final int id;
  final String name;
  const Root({required this.id, required this.name});
}