JSON to C# Class Generator

Generate C# class models from JSON objects and arrays.

Root class name

JSON input

C# output

public class RootObject
{
    public int Id { get; set; }
    public string? Name { get; set; }
    public bool IsActive { get; set; }
    public List<string> Tags { get; set; }
    public Owner? Owner { get; set; }
}

public class Owner
{
    public string? Email { get; set; }
}

JSON to C# Class Generator for API Models

Convert JSON examples into C# class models for APIs, DTOs, configuration objects, and typed application code. Paste a JSON object or an array of objects, choose a root class name, and generate properties with inferred C# types.

Infers strings, integers, doubles, booleans, objects, and lists.
Creates nested classes from nested JSON objects.
Runs in your browser so sample API payloads stay local.

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Frequently Asked Questions

Have a question? We’ve got answers to the most common questions about using our tools.

Can it handle arrays?+

Yes. For arrays it uses the first non-null item as the sample type.

Does it generate perfect production models?+

It creates a strong starting point. Review nullable types, naming, and edge cases before production use.

Is my JSON uploaded?+

No. JSON is parsed and converted in your browser.