JSON to C# Online - Free & Local

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JSON to C# is a free ComTools utility that convert json to c# classes. Data is processed locally in your browser; nothing is uploaded.

Free to use
No signup required
Local processing
Data is processed locally in your browser; nothing is uploaded.
Bilingual UI
Chinese and English supported
Developer friendly
Convert JSON to C# classes

QIs my data uploaded?

Data is processed locally in your browser; nothing is uploaded.

QIs it free?

Yes, completely free with no usage limits.

QWhich browsers are supported?

Modern browsers: Chrome, Edge, Firefox, Safari.

QHow to report issues?

Use the Messages page for feedback or custom requests.

Mapping JSON to C# classes speeds up API integration. Property names become PascalCase fields with nested classes and List<T> for arrays.

public class User
{
    public string Name { get; set; }
    public int Age { get; set; }
}