JSON to C# Class Converter – Generate C# Models from JSON
Use this free JSON to C# converter to instantly generate strongly typed C# classes from JSON objects. Paste your JSON, click convert, and the tool builds C# model classes with properties that match your JSON structure.
This is ideal when you’re consuming APIs in .NET or building data transfer objects and want to avoid hand-writing every property by yourself.
What the JSON to C# Converter Does
The CodersTool JSON to C# generator:
- Parses your JSON object or array and infers C# property types.
- Generates class definitions with
public properties matching your JSON keys. - Supports nested objects and arrays by creating additional C# types as needed.
- Produces code you can drop straight into your .NET, ASP.NET Core, or Unity projects.
How to Generate C# Classes from JSON
1. Paste your JSON
- Copy the JSON from your API response, configuration, or sample payload.
- Paste it into the input area of the JSON to C# converter.
- Make sure it’s valid JSON (you can use the JSON Formatter tool if needed).
2. Click “Convert to C#”
- The tool analyzes your JSON and infers appropriate .NET types like
string, int, double, bool, DateTime, and collections. - It outputs one or more C# classes with properties named after your JSON fields.
3. Copy the generated C# code
- Copy the class definitions into your project.
- Use them with your JSON serializer (e.g., System.Text.Json, Newtonsoft.Json) to deserialize responses into strongly typed objects.
Example – JSON to C#
Input JSON
{
"id": 1,
"name": "Example",
"isActive": true
}
Generated C# Class
public class Root
{
public int Id { get; set; }
public string Name { get; set; }
public bool IsActive { get; set; }
}
You can rename the root class or properties to match your naming conventions, but the heavy lifting of mapping types is already done.
Use Cases for JSON to C# Conversion
- API clients – Quickly build request/response DTOs from API documentation or sample payloads.
- Microservices – Share consistent contracts between services by generating models from shared JSON schemas.
- Prototyping – Move fast when integrating with third‑party APIs by generating models in seconds.
- Learning – See how JSON structures map to common C# data types and patterns.
Related C# & JSON Tools
Use this JSON to C# converter whenever you want to go from raw JSON to fully typed C# models with minimal effort.