XML to C# class

XML to C# Class Converter – Generate C# Data Models Instantly

Converting raw XML payloads into C# Plain Old CLR Objects (POCOs) manually is slow, tedious, and prone to typos. When integrating SOAP web services, legacy enterprise systems, or custom configuration files in .NET, you need a fast way to model XML trees into strongly-typed C# code.

Our free online XML to C# Class Converter transforms any well-formed XML payload into clean, ready-to-use C# class definitions. It automatically detects root nodes, child elements, XML attributes, and data arrays, giving you production-ready code in seconds.

Also Check: XML Validator

How to Convert XML to C# Classes

You do not need to install visual studio plugins or third-party NuGet packages just to generate basic data models. Follow these simple steps:

1. Input Your XML Data: Paste your raw XML code into the Enter XML input box. Alternatively, click Upload .xml File to load a file directly from your device.
2. Generate C# Classes: Click the Convert To C# button to process the structure.
3. Review the Output: Your calculated C# class definitions will instantly appear in the C# Class Output box.
4. Copy or Download: Click Copy To Clipboard to copy the code directly to your code editor, or click Download .Cs to save it as a C# source file.

If you want to reset the fields and start over, click Clear Text.

Why Convert XML into C# Classes?

Working with raw strings or traversing XML DOM trees manually with XmlDocument or XDocument requires bulky boilerplate code. Mapping your XML into strongly-typed C# classes offers major advantages for .NET applications:

1. Strongly-Typed Data Access

Instead of parsing nodes by string names like node["publish_date"].InnerText, C# classes let you access properties directly like product.PublishDate. This provides compile-time checking and prevents typos from breaking your application at runtime.

2. Fast Deserialization

Once you have generated matching C# classes, parsing an entire XML document into memory takes only a few lines of code using .NET’s built-in XmlSerializer:

C#

XmlSerializer serializer = new XmlSerializer(typeof(Catalog));
using (StringReader reader = new StringReader(xmlString))
{
    Catalog catalog = (Catalog)serializer.Deserialize(reader);
}

3. Full IDE IntelliSense Support

Strongly-typed classes unlock auto-completion in Visual Studio, Visual Studio Code, and JetBrains Rider. This improves developer speed and makes your code much easier to maintain.

How the Conversion Works

The converter inspects the hierarchy and values in your XML string to construct logical C# class structures:

• XML Elements: Standard XML tags are converted into C# public auto-properties (public string Title { get; set; }).
• XML Attributes: Attributes inside XML elements (e.g., <product id="bk101">) are extracted into properties adorned with the [XmlAttribute] attribute.
• Nested Structures: Child XML tags with sub-elements generate separate C# child classes, preserving parent-child relationships.
• Repeating Nodes: Duplicate sibling tags under one parent node are represented as C# List<T> collections.

Also Check: XML Viewer

Example Transformation

Here is a practical look at how the tool converts structured XML into C# code.

Input XML:

XML

<catalog>
    <product id="bk101">
        <author>Gambardella, Matthew</author>
        <title>XML Developer's Guide</title>
        <publish_date>2000-10-01</publish_date>
    </product>
</catalog>

Generated C# Classes:

C#

using System;
using System.Collections.Generic;
using System.Xml.Serialization;

[XmlRoot(ElementName = "product")]
public class Product
{
    [XmlAttribute(AttributeName = "id")]
    public string Id { get; set; }

    [XmlElement(ElementName = "author")]
    public string Author { get; set; }

    [XmlElement(ElementName = "title")]
    public string Title { get; set; }

    [XmlElement(ElementName = "publish_date")]
    public string PublishDate { get; set; }
}

[XmlRoot(ElementName = "catalog")]
public class Catalog
{
    [XmlElement(ElementName = "product")]
    public List<Product> Product { get; set; }
}

Frequently Asked Questions (FAQ)

1. What does an XML to C# Class Converter do?

It reads an XML markup structure and automatically generates matching C# data transfer objects (DTOs/POCOs). It maps XML tags, attributes, and hierarchies to C# classes, properties, and list collections.

2. Does this tool support XML attributes?

Yes. The tool identifies XML attributes inside tags and converts them into corresponding C# properties adorned with [XmlAttribute] annotations.

3. How are repeating XML elements converted?

When multiple child elements share the same tag name inside a parent tag, the tool converts them into a generic C# list, such as List<ChildClass>.

4. Is my XML data secure when using this converter?

Yes. All conversion processing occurs client-side inside your web browser. Your XML data and generated C# code are never uploaded to or stored on external servers.

5. Are the generated C# classes compatible with modern .NET versions?

Yes. The generated classes use standard C# syntax and standard System.Xml.Serialization attributes, making them compatible with .NET Framework, .NET Core, .NET 6, .NET 7, .NET 8, and .NET 9.

6. Can I convert large .xml files?

Yes. You can click the Upload .xml File button to import large XML files directly from your computer for instant processing.

7. How are data types determined during conversion?

The converter inspects value patterns (such as strings, integers, decimals, and dates) and assigns matching primitive C# types. If a field contains mixed text or ambiguous values, it defaults to string.

8. Can I directly save the converted C# code?

Yes. You can click the Download .Cs button underneath the output text box to download the generated class code as a .cs file.

9. Why does the converter fail on my XML code?

Conversions fail if the input XML is not well-formed. Common issues include unclosed tags, unquoted attribute values, or missing root elements. Ensure your XML is valid before converting.