.NET QR Code Barcode Reader, reading QR Code barcode images in .NET, C#, VB.NET, ASP.NET applications

C# QR Code Reader Library

How to read 2d QR Code in C# ASP.NET Core, MVC, Windows apps?

C#.NET QR Code Barcode Reader for .NET, C#, ASP.NET & VB.NET

Barcode Reader for C#.NET library > How to read, scan barcodes using C#? > Scan, read, recognize QR Code barcode image in C#

Fully written in Visual C#.NET 2.0
Consistent with .NET 2.0, 3.0, 3.5 and later version
Have fast reading speed
Support reading distorted QR Code barcode images
Read QR Code barcodes from all angles
Scan multiple QR Code barcodes in a single image file
Support GIF, JPEG, PNG & TIFF formats

Download QR Code Barcode Reader for .NET

You are allowed to download KA.Barcode Reader for .NET for free. This unzipped trial package contains:

KeepAutomation.BarcodeReader.dll
End user license agreement, user manual and order page

Note that: You are able to use this trial version permanently without charge. The first character of a barcode symbology is decoded randomly by our .NET Barcode Reader.

.NET QR Code Barcode Reader Developer Guide

Add KeepAutomation.BarcodeReader.dll to your project reference.
Refer to the following C# & VB codes.

C# Sample code

     using KeepAutomation.BarcodeReader;
     String[] datas = BarcodeReader.readBarcode("C:\barcode.jpeg", BarcodeType.QRCode);

VB Sample code

     Imports KeepAutomation.BarcodeReader  
     Dim datas As [String]() = BarcodeReader.readBarcode("C:\barcode.jpeg", BarcodeType.QRCode)

.NET Barcode Reader Licenses & Prices

View Licenses & Prices

Frequently Asked Questions

How can I read a QR code on my computer?

You can use dedicated barcode scanning software installed on your computer or a connected hardware barcode scanner to read it. Using KeepAutomation C# QR Code Reader library, you can build ASP.NET web or Windows app to scan, read QR Codes from your computers.

How do you read a QR Code that's on your screen?

To read a QR Code displayed on your screen:

Capture and save a screenshot of the QR Code on your computer.
Use QR Code scanner software to read the code from the saved

Using C# QR Code scanner sdk, you can easily read QR Codes from your screen in your ASP.NET Core, MVC, Windows Form, and WPF applications.

What's the easiest way to scan a QR code on a mobile phone?

Available for download on both iPhone and Android devices. You can read them by installing a third-party QR scanner app on your iOS or Android phone. Using Using C# QR Code reader component API, you can build QR Code scanner app on iPhone or Android phones in Visual Studio .NET projects.

How can I read a QR code from a picture file?

Use a QR code scanning application that accepts image uploads or a web-based decoder service. You can quickly build your own web or desktop apps to scan QR Codes from image files using C# QR Code Reader library.

Are there any QR code scanners or readers available?

Yes, you can use the native camera application on most iPhones and Android devices to scan them directly. Or you can build your own free QR Code reader apps using KeepAutomation C# QR Code Barcode Reader library.