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CalcForge

JSON to C# Converter

Create C# classes with Newtonsoft or System.Text.Json-friendly property names.

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C# models from JSON payloads

.NET APIs deserialize JSON into strongly typed classes. CalcForge inspects sample documents and emits C# properties, lists, and nested classes so you can paste into ASP.NET controllers, Azure Functions, or MAUI clients without hand-mapping every field.

Good fits

  • Scaffolding DTOs for minimal APIs and gRPC JSON gateways
  • Modeling webhook callbacks in Azure Functions
  • Creating test fixtures for xUnit deserialization tests
  • Aligning client models with third-party SaaS JSON
JSON:
{"productId":42,"tags":["sale","new"]}

C#:
public class Root {
    public int ProductId { get; set; }
    public List<string> Tags { get; set; }
}

Practical notes

  • Add `[JsonPropertyName]` attributes when camelCase JSON maps to PascalCase properties.
  • Nullable reference types may need `?` on optional strings—enable NRT in your project.
  • Combine with JSON Schema Generator for contract tests alongside classes.

Frequently asked questions

System.Text.Json or Newtonsoft?

Generated POCOs work with both. Add the attribute set your serializer expects for naming and null handling.

Are init-only records supported?

Convert property classes to records manually in modern C#—structure transfers directly.

How are enums inferred?

String constants stay as strings unless samples repeat a closed set—define enums yourself for safety.

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