JSON to C#

Generate C# Models Locally

JSON to C# converts sample JSON into classes with nested models, List<T> arrays, sanitized property names, nullable annotations, and optional serialization attributes.

System.Text.Json Or Newtonsoft

Choose System.Text.Json, Newtonsoft.Json, or no attributes. When attributes are enabled, original JSON keys are preserved even when C# property names are sanitized.

Model Output Needs Review

The generator infers from examples, so heterogeneous arrays become object-like fallbacks and null fields may need manual refinement. Copy or download the result, then adapt it to your project conventions.

Can JSON to C# add serialization attributes?

Yes. Choose System.Text.Json, Newtonsoft.Json, or no attributes.

How are reserved words handled?

Class and property names are sanitized into valid identifiers, while enabled attributes keep the original JSON keys.

Does it infer nullable fields?

It can emit nullable reference annotations and marks sample nulls or reference-like fields where practical.

Are nested arrays supported?

Nested arrays and objects generate List<T> types when the sample has a consistent element shape.

Is my JSON uploaded?

No. Generation happens locally in the browser and the output can be copied or downloaded.