JSON to C# Converter

How to use

1. Paste a representative JSON payload that matches the request or response contracts your .NET code actually consumes.
2. Review the generated C# classes, `JsonPropertyName` attributes, and nested DTO structure for inferred field types.
3. Copy the output into your ASP.NET or client project and refine namespaces, nullability, or validation attributes as needed.

Benefits

• Produces serializer-aware C# DTOs that fit System.Text.Json workflows out of the box.
• Keeps nested payloads in typed classes instead of dictionaries and ad hoc mapping code.
• Speeds up API contract scaffolding for ASP.NET backends and typed .NET clients.

Best use cases

• ASP.NET APIs that want request and response DTO scaffolding from real payload examples.
• .NET integration clients that rely on System.Text.Json naming attributes and reusable transport models.
• Teams moving JSON-heavy jobs or background workers from dynamic parsing into typed classes.

C# DTO tips

• Use this route when your project standardizes on System.Text.Json rather than handwritten mapping models.
• Review nullable reference types and collection defaults before wiring generated DTOs into production endpoints.
• Add validation, records, or namespace conventions after the first scaffold is generated.

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