JSONToTable

JSON to C# Converter

Convert JSON data to C# classes with properties and attributes

JSON Input

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C# Output

C# code will appear here

Paste JSON in the input area to get started

How to Convert JSON to C# Classes - Step by Step Guide

Step 1

Input Your JSON Data

Start by adding your JSON data that needs to be converted to C# classes. The tool analyzes the structure to generate appropriate POCOs.

Example: Try This JSON Data

Copy and paste this JSON example to see how it works: 💜

{
  "customer": {
    "customerId": 12345,
    "firstName": "Anna",
    "lastName": "Kowalski",
    "email": "anna.kowalski@example.com",
    "isActive": true,
    "preferences": [
      "email_notifications",
      "newsletter",
      "promotions"
    ],
    "billing": {
      "street": "ul. Marszałkowska 1",
      "city": "Warsaw",
      "country": "Poland",
      "postalCode": "00-624"
    }
  }
}
Step 2

Configure C# Options

Customize how your JSON is converted to C# classes! ⚙️ Choose attributes and naming conventions.

•
Newtonsoft.Json attributes: Generate JsonProperty attributes for JSON binding
•
POCO generation: Create clean C# POCOs with properties
•
Nested classes: Handle complex JSON hierarchies with nested types
•
Type mapping: Automatic C# type mapping from JSON data types
Step 3

Get Generated C# Code

Watch the transformation! ✨ Your JSON structure becomes clean, attributed C# classes.

C# Code Output

Your JSON becomes these C# classes:

using Newtonsoft.Json;
using System.Collections.Generic;

public class Billing
{
    [JsonProperty("street")]
    public string Street { get; set; }

    [JsonProperty("city")]
    public string City { get; set; }

    [JsonProperty("country")]
    public string Country { get; set; }

    [JsonProperty("postalCode")]
    public string PostalCode { get; set; }
}

public class Customer
{
    [JsonProperty("customerId")]
    public int CustomerId { get; set; }

    [JsonProperty("firstName")]
    public string FirstName { get; set; }

    [JsonProperty("preferences")]
    public List<string> Preferences { get; set; }

    [JsonProperty("billing")]
    public Billing Billing { get; set; }
}
Step 4

Copy or Download C# Code

Perfect! Now you can use your C# classes in your applications for JSON processing. 🚀

•
Copy to clipboard for immediate use in your C# projects
•
Download .cs files for integration into your solution
•
Use with frameworks like ASP.NET Core and WPF
•
.NET applications and web APIs

What is JSON to C# Conversion? 🔄

JSON to C# conversion transforms JSON data structures into C# classes with Newtonsoft.Json attributes for seamless data binding. This process analyzes JSON structure and generates C# POCOs that can serialize and deserialize JSON data, making it easy to work with JSON in .NET applications.

The generated C# classes include proper properties, JsonProperty attributes, and type mappings, enabling automatic JSON serialization and deserialization in .NET applications and web APIs.

Frequently Asked Questions

What C# attributes are generated for JSON binding?

The tool generates Newtonsoft.Json attributes like [JsonProperty("fieldName")] for each property. These attributes ensure proper JSON serialization and deserialization, handling field name mapping between JSON and C# conventions.

Can I use the generated classes with ASP.NET Core?

Absolutely! The generated C# classes work perfectly with ASP.NET Core Web APIs, MVC controllers, and Entity Framework. They integrate seamlessly with model binding, validation, and JSON serialization in .NET applications.

How are nested JSON objects handled in C#?

Nested JSON objects become separate C# classes with proper relationships. The tool creates a class hierarchy that mirrors your JSON structure, with parent classes containing properties of child class types.

What C# data types are used for JSON values?

JSON strings become C# string, numbers become int/double/decimal, booleans become bool, arrays become List<T>, and objects become custom classes. The tool intelligently maps JSON types to appropriate C# types.

Can I customize the generated C# class names?

Yes! You can specify custom root class names and the tool follows C# naming conventions (PascalCase for classes, camelCase for properties). Property names are automatically converted from JSON naming to C# conventions.

Is the JSON to C# converter free to use?

Yes, completely free with no limitations on JSON complexity, class generation, or usage frequency. No registration required, and you can generate unlimited C# classes from JSON data at no cost.