JSON to C# — Generate C# classes Online
Paste a JSON sample and instantly generate C# classes code in your browser. Free, private, and powered by smart type inference — your data never leaves your device.
Your data never leaves your browser
Generate typesClient-sideCopy & Download
Paste JSON to generate C# code
JSON input
C# classes
Switch language: TypeScript · Zod · Pydantic · Go · Java · …
About this tool
Generate typesNested objectsOptional fieldsCopy & DownloadPrivacy-first
How to use
- Paste or upload a JSON sample in the input panel.
- Wait for validation — generation runs automatically when JSON is valid.
- Adjust the root type name and language-specific options if needed.
- Copy the generated code or download it with the correct file extension.
- Switch to another JSON→Code tool from the language dropdown for a different target.
Examples
Simple object
{"id":1,"name":"Ada","active":true}public class Root { ... }Nested API response
{"user":{"id":1,"email":"dev@example.com"},"items":[1,2,3]}Nested C# classes with sub-types inferred from structure