Ready to Generate C# Classes
Paste JSON in the left panel or load a sample to get started
Generate strongly-typed C# classes from JSON data — with smart type inference and serialization attributes
Ready to Generate C# Classes
Paste JSON in the left panel or load a sample to get started
Use our free JSON to CSharp generator to produce strongly-typed class definitions in four simple steps
Paste any JSON into the left panel of our JSON to CSharp converter — API responses, config files, database exports, you name it. The editor validates syntax in real time so you know immediately if something looks off.
{
"id": 123,
"name": "John Doe",
"isActive": true,
"address": {
"street": "123 Main St",
"city": "Springfield"
}
}Choose your root class name, target serialization library (System.Text.Json or Newtonsoft.Json), and whether to include nullable types. The JSON to CSharp generator applies your options immediately.
The JSON to CSharp converter generates class definitions instantly in the right panel with PascalCase properties, proper type inference, and serialization attributes. Nested JSON objects become separate CSharp classes automatically.
public class Root
{
[JsonPropertyName("id")]
public int Id { get; set; }
[JsonPropertyName("name")]
public string Name { get; set; }
[JsonPropertyName("isActive")]
public bool IsActive { get; set; }
[JsonPropertyName("address")]
public Address Address { get; set; }
}
public class Address
{
[JsonPropertyName("street")]
public string Street { get; set; }
[JsonPropertyName("city")]
public string City { get; set; }
}Copy the JSON to CSharp output to clipboard or download a ready-to-use .cs file. Drop it straight into your .NET project and start deserializing JSON with full type safety provided by the generated CSharp classes.
Common questions about using the JSON to C# class generator
Edit, format, and beautify JSON
Validate, fix, and inspect JSON
Compare, measure, and map JSON
Convert JSON to other formats
Convert other formats to JSON
Generate code and format other languages