A C# QR Code Library that prioritizes accuracy, ease of use, and speed. IronQR is the leading C# QR Code library for reading and creating QR codes in .NET. Its user friendly API allows developers to add Barcode functionality to .NET projects in minutes.

.NET Versions
C#, VB.NET, F#
.NET Core (8, 7, 6, 5, and 3.1+)
.NET Standard (2.0+)
.NET Framework (4.6.2+)
.NET Project Types
Web (Blazor & WebForms)
Mobile (Xamarin & MAUI)
Desktop (WPF & MAUI)
Console (App & Library)
App Environments
Windows (10+, Server 2016+)
Linux (Ubuntu, Debian, CentOS, etc.)
Apple macOS (10+)
Apple iOS (12+)
Android API 21+ (v5 “Lollipop”)
Docker (Windows, Linux, Azure)
Azure (VPS, WebApp, Function)
AWS (EC2, Lambda)
IDEs
Microsoft Visual Studio
JetBrains ReSharper & Rider

Read Many Image Formats
Images (jpg, png, svg, bmp)
Multipage Images (gif, tif, tiff)
System.Drawing Bitmaps
IronDrawing Images (AnyBitmap)
Machine Learning Model
Custom QR Detection Model
Slim Mode option (non-ML)
Output Data Formats
Value (String)
Link or Website (Uri)
Coordinates (PointF)
Supports:
Async
Multithreading

Write to Document Types
Image (jpg, png, gif, tiff, bmp)
System.Drawing Images
IronDrawing Images (AnyBitmap)
Stream (MemoryStream, byte[])
PDF (Stamp on Existing PDF)
Encoding Data in QR Code
Text, URLs, bytes, and numbers
Styling QR Codes
Resizing
Margins & Borders
Recoloring
Add Logos to QR Codes
Checking Fault Tolerance
Choose QR Version
Null Checking
Checksums
Format Awareness
Detailed Error Messages
Custom QR Error Correction