C# Model Generator

Transform JSON data into production-ready C# classes with automatic property generation, nullable reference types, JsonPropertyName attributes, and record types. Features intelligent type inference, nested class handling, and modern C# syntax. Perfect for .NET developers working with APIs and JSON serialization.

Nullable Support JsonPropertyName Attributes Record Types Modern C# Syntax

Quick Examples

CLASS: public class User { ... }
RECORD: public record User(string Name, int Age);
NULLABLE: public string? Email { get; set; }

JSON Input

Enter JSON to validate

Model Configuration

Root Model Name

Name for the main C# class

Model Type

Access Modifier

Namespace

System.Text.Json Attributes

Newtonsoft.Json Attributes

Nullable Reference Types

Advanced Options

Convert snake_case to PascalCase

Generate Constructors

Generate ToString Override

Include XML Documentation

Auto-Implemented Properties

Data Validation Attributes

Generated C# Models

Ready to generate models 0 models generated

Model Analysis

0

Properties

0

Nullable

0

Nested

0

Collections

Detected Types:

Quick Actions

Help & Related Tools

Everything you need to know

FAQ Frequently Asked Questions

What features does the C# Model Generator offer?

Convert JSON to C# models with nullable reference types, System.Text.Json attributes, record types, validation attributes, and automatic snake_case to PascalCase conversion. Perfect for .NET API integration and modern C# development.

How do I convert JSON to C# models?

Paste your JSON data into the input field, configure model settings like type (class/record/struct) and serialization attributes, then click "Generate Models". The tool creates production-ready C# code with proper type inference and modern syntax.

Does the tool support modern C# features?

Yes, the generator supports nullable reference types, record types, System.Text.Json attributes, data validation attributes, XML documentation, and modern C# syntax patterns. Compatible with .NET 5+ and C# 9+ features.

Are there any limitations for JSON complexity?

The tool handles complex nested JSON structures efficiently, but very large files (over 10MB) may affect performance. For optimal results, use well-structured JSON with consistent type patterns. All processing happens client-side for security.

Can I customize the generated C# code output?

Absolutely! Configure model type (class/record/struct), access modifiers, namespace, serialization libraries (System.Text.Json/Newtonsoft), nullable context, constructors, ToString methods, XML documentation, and validation attributes for complete customization.