Create QR Code C#

Quick Response (QR) codes have become an integral part of modern communication. They are versatile tools used in various applications, from marketing and promotions to inventory management and contactless payments. A QR code is a two-dimensional barcode that stores information in a graphical format. It consists of black squares arranged on a white square grid, and it can store various types of data, such as text, URLs, contact information, and more. In this blog post, we will explore how to create QR codes in C#.

QR Code Generator - C# API Installation

Creating QR codes in C# allows you to integrate QR code generation into your applications and automate the process. This can be beneficial for businesses and developers looking to add QR code functionality to their applications. You just need to configure Conholdate.Total for .NET from the Downloads page or run the following NuGet installation command:

PM> NuGet\Install-Package Conholdate.Total

Create QR Code in C#

You can create a QR code in C# with the following steps:

  • Create an object of the BarcodeGenerator class.
  • Set different QR Code appearance parameters.
  • Set the QR version and encode type.
  • Save the generated QR code.

The following sample code shows how to create a QR code in C#:

Create QR Code with Aspect Ratio in C#

You can customize the QR code generation process with different appearances like error correction level, sizing, data encoding mode, aspect ratio, etc. The following steps show how to set the Aspect Ratio while creating a QR code:

  • Initialize an instance of the BarcodeGenerator class.
  • Set barcode parameters.
  • Set Aspect Ratio.
  • Save the generated QR Code.

The code snippet below demonstrates how to create a QR code with an aspect ratio in C#:

The following image shows the generated QR code with aspect ratio set to 2:

QR Code C# Aspect Ratio

Free Evaluation License

You can request a free temporary license to evaluate the APIs without any limitations or restrictions.

Summing Up

QR codes are not only convenient but also offer a practical way to connect physical and digital worlds. Whether you’re building a mobile app, a web application, or desktop software, the ability to create QR codes in C# can enhance user experiences and streamline data sharing. So, go ahead and start integrating QR code generation into your C# projects. In case of any ambiguities, please feel free to contact us at forum.


Can I customize the appearance of the QR code in C#?

Yes, most QR code libraries in C# allow you to customize the QR code’s size, color, error correction level, and add logos or labels to the QR code image.

Can I generate QR codes for offline use in C#?

Yes, you can generate QR codes for offline use by saving the generated QR code image to a file or printing it. Once created, QR codes do not require an internet connection to be scanned.

How do I save the generated QR code as an image file in C#?

After generating the QR code, you can save it as an image file (e.g., PNG, JPEG) using standard file I/O operations in C#. The libraries typically provide methods to convert the QR code to an image format.

See Also