JSON to C# Classes
Generate C# classes with auto-properties from JSON.
Use JSON to C# Classes to skip the boilerplate of hand-writing data models. It's the go-to free choice when you're consuming a JSON API and need matching c# Classes fast — paste, copy, done. No sign-up, no install, and your payload never leaves the browser.
About JSON to C# Classes
Building a typed app and tired of hand-writing models? JSON to C# Classes turns a real JSON payload into c# Classes in a single paste — it generate C# classes with auto-properties from JSON. Drop in an API response, copy the generated code, and keep your types in lockstep with the data. Like every ToolJolt utility it runs 100% in your browser — no sign-up, no upload, and nothing ever sent to a server, so it's safe for proprietary code and confidential data.
How to use JSON to C# Classes
- 1Paste a representative JSON payload (an API response works great).
- 2The tool infers the field types and nested structures instantly.
- 3Review the generated code, then copy or download it straight into your project.
- 4Tweak the JSON and re-run any time — it's free and unlimited.
Why use JSON to C# Classes?
- ✓Infers types automatically from a real JSON sample
- ✓Handles nested objects and arrays of objects
- ✓Copy or download the generated types in one click
- ✓Saves the tedious, error-prone work of writing models by hand
Frequently asked questions
How does JSON to C# Classes infer types?+
It walks your JSON sample and maps each value to the closest static type — numbers, strings, booleans, arrays and nested objects each become the idiomatic type for the target language. Provide a complete example for the most accurate result.
Will the generated code compile as-is?+
It's designed to drop straight in, but you should review naming and nullability. JSON can't express every nuance (e.g. unions or optionals), so treat the output as a strong first draft you can refine.
Is JSON to C# Classes free?+
Yes. JSON to C# Classes is completely free with no sign-up, no account, no usage limits and no watermarks. Use it as often as you like.
Does JSON to C# Classes send my data to a server?+
No. JSON to C# Classes runs entirely in your browser with JavaScript — your input never leaves your device, which makes it safe for private API payloads, schemas and source code.
Embed JSON to C# Classes on your website
Want JSON to C# Classeson your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
<iframe src="https://tooljolt.com/tools/json-to-csharp" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="JSON to C# Classes — ToolJolt" loading="lazy"></iframe>Related Data tools
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