JSON to C# Converter

How to use

1. Paste JSON input from your API payload or sample document.
2. Select your output target and model options.
3. Generate, review, and copy the result.

Benefits

• Handles nested objects and arrays from API responses.
• Reduces manual model writing and naming inconsistencies.
• Works instantly in browser with copy-ready output.

Best use cases

• Generate C# models for ASP.NET APIs and clients.
• Bootstrap DTO classes for serialization and validation layers.
• Reduce repetitive class scaffolding for nested JSON responses.

Type mapping notes

• Properties are generated from inferred JSON object fields.
• Nested JSON objects become nested class types.
• Collections map to generic list-like structures based on sample arrays.

Implementation tips

• Review nullable settings when APIs return partial data.
• Align naming with your serialization strategy before production use.
• Keep generated DTOs in a dedicated contracts namespace.

Sample JSON

{
  "id": 101,
  "name": "Ada Lovelace",
  "active": true,
  "roles": ["admin", "editor"],
  "profile": {
    "email": "ada@example.com",
    "score": 9.8
  }
}

Sample output

public class UserModel
{
  public int Id { get; set; }
  public string Name { get; set; } = string.Empty;
  public bool Active { get; set; }
  public List<string> Roles { get; set; } = new();
}

FAQ