The C# QR Code Library

Go beyond basic QR creation. Get ML-powered QR reading for .NET 10 and advanced preprocessing for distorted scans, blur, and imperfect images.

Generate QRs with branding, colors, and styling control

Read QR codes, Micro QR, or RMQR from any angle

Decode images, streams, multi-page TIFFs, & PDFs

Free 30-day trial, full features, no credit card

QR Quickstart See All 8 Code Examples

using IronQr;
using IronSoftware.Drawing;

// Create a QR Code object
QrCode myQr = QrWriter.Write("hello world");

// Save QR Code as a Bitmap
AnyBitmap qrImage = myQr.Save();

// Save QR Code Bitmap as File
qrImage.SaveAs("qr.png");

Install-Package IronQR

Next Step: Start Free Trial

Fully functional without watermarks

30-day trial - no credit card required

Next Step: Start Free Trial

Fully functional without watermarks

30-day trial - no credit card required

PM > Install-Package IronQR

IronQR

See what’s new:

New NuGet packages released

Cross Platform Support

Designed for C#, F#, & VB.NET running on .NET 10, 9, 8, 7, 6, 5, Core, Standard, or Framework
For 1D Barcode & PDF support, try our IronBarcode Library

.NET Versions:

C#, VB.NET, F# Languages
.NET Core (10, 9, 8, 7, 6, 5, and 3.1+)
.NET Standard (2.0+)
.NET Framework (4.6.2+)

OS & Processors:

Windows (x64, x86)
Mac (x64, ARM)
Linux (x64)

.NET Project Types:

Web (Blazor & WebForms)
Mobile (MAUI)
Desktop (WPF & MAUI)
Console (App & Library)

App Environments:

Windows (10+, Server 2016+)
Linux (Ubuntu, Debian, CentOS, etc.)
Mac (macOS 10+)
Apple iOS (13+)
Android API 24+ (v7 “Nougat”)
Docker (Windows, Linux, Azure)
Azure (VPS, WebApp, Function)
AWS (EC2, Lambda)

IDEs:

Microsoft Visual Studio
Jetbrains ReSharper & Rider

Binary Certification

DigiCert Signed Binaries

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 QR functionality to .NET projects in minutes.

Get your free 30-day Trial Key instantly.

Your trial key should be in the email.
If it is not, please contact
support@ironsoftware.com

When you need to read, write, and style QR codes, fast.

Trusted by millions of engineers worldwide

Every time developers ask, it's a YES! from IronPDF

switch(faqQuestions)
{ 
    case "Can I deploy my application using the library to Linux, macOS, or Windows, including Docker containers?": return "YES";
    case "Can I render pixel-perfect PDFs from complex HTML5, CSS3, and JavaScript?": return "YES";
    case "Is the library thread-safe for use in highly concurrent, multi-threaded server applications and APIs?": return "YES";
    case "Can I set custom viewport dimensions and print media CSS to control responsive layouts?": return "YES";
    case "Is IronPDF compatible with Azure Functions?": return "YES";
    case "Can I permanently redact sensitive text and images from PDF documents?": return "YES";
    case "Can I generate a PDF from a URL that requires authentication via custom headers, cookies, or form logins?": return "YES";
    case "Can I access PDF DOM through ObjectModel property?": return "YES";
    case "Can I programmatically fill, read, and flatten interactive AcroForm?": return "YES";
    case "Does it support generating PDF/A and PDF/UA compliant documents for archiving and accessibility standards?": return "YES";
    case "Can I secure a document with 256-bit AES password encryption and set user permissions?": return "YES";
    case "Can I apply and verify digital signatures on a PDF using X.509 certificates?": return "YES";
    case "Can I test IronPDF in my live project for free now?": return "YES, click here to start your 30-day free trial";
}

Does the IronQR library utilize an advanced Machine Learning (ML) model specifically trained to detect and read QR codes in complex, noisy, or distorted images?YES!

Can I generate and read not only standard QR Codes but also specialized formats like Micro QR and Rectangular Micro QR (rMQR) for space-constrained applications?YES!

Does it support styling generated QR codes with custom logos, branded color schemes, background transparency, and precise margin adjustments?YES!

Is the library capable of reading multiple QR codes from a single image or PDF page simultaneously, even if they are rotated or partially obscured?YES!

Can I export generated QR codes directly to high-quality image formats (PNG, JPEG, SVG) or as System.IO.Stream objects for web responses without saving to disk?YES!

Does it offer a "Slim Mode" to disable Machine Learning features when maximum speed is prioritized over advanced detection accuracy?YES!

Can I encode various data types, including raw binary data, URLs, text, and numeric strings, with customizable Error Correction Levels (Low to High)?YES!

Is the engine fully cross-platform, supporting .NET 8, 7, 6, 5, Core, Standard, and Framework on Windows, Linux, macOS, iOS, Android, and Docker?YES!

Does it allow reading QR codes directly from PDF documents without needing third-party libraries to rasterize pages first?YES!

Can I use the library in cloud environments like Azure Functions and AWS Lambda with native support for System.Drawing.Common alternatives (like IronSoftware.Drawing)?YES!

Are there async methods available for both reading and writing operations to ensure non-blocking performance in scalable web applications?YES!

Can I test IronQR in my live project for free now?YES! Click here to start your 30-day free trial