Data & Formatting
JSON to C# Classes
Generate C# classes from JSON data
Paste a JSON sample and generate matching C# classes with correctly typed properties, ready to drop into your project for deserialization. It saves you from hand-writing DTOs and reduces mistakes when mapping API responses into strongly typed models.
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How to use JSON to C# Classes
- Paste a representative JSON object or response.
- Generate the corresponding C# class definitions.
- Review the inferred property names and types.
- Copy the classes into your project for use with a JSON serializer.
Frequently asked questions
How are property types inferred?
Types are guessed from the JSON values: numbers, strings, booleans, arrays, and nested objects each map to an appropriate C# type, with nested objects becoming their own classes.
Will nested objects become separate classes?
Yes. Each nested JSON object is turned into its own class so the structure mirrors your data and stays easy to maintain.
Can I use the output with System.Text.Json or Newtonsoft?
The generated classes are plain C# models that work with either serializer; add attributes if you need custom property-name mapping.
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