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.

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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 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");

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");

Imports IronQr
Imports IronSoftware.Drawing

' Create a QR Code object
Dim myQr As QrCode = QrWriter.Write("hello world")

' Save QR Code as a Bitmap
Dim qrImage As AnyBitmap = myQr.Save()

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

PM >Install-Package IronQR

Install-Package IronQR

See what’s new:Changelog

Cross Platform Support

Designed for C#, F#, & VB.NET running on .NET 10, 9, 8, 7, 6, 5, Core, Standard, or Framework

.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.

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

Generate

Write into Many formats

Style

Styling QR codes

Read

Read Many Data Formats

Output Data Formats

Supported Formats

Set Performance and Accuracy

Artificial intelligence

Machine Learning Model

Cross-compatibility

Support Platforms

App Environments

Fault Tolerance

Debugging

Why IronQR

ML-powered QR detection for .NET. Reads distorted, blurred, and imperfect scans. Generates branded QRs with logos and colors.

Full QR format support

Read and write Standard QR, Micro QR, and Rectangular Micro QR (rMQR).
Decode from images, streams, PDFs, and multi-page TIFFs in one call.
Export to PNG, JPEG, SVG, or Stream without saving to disk.

Outcome: One library for every QR format your project will ever need.

Up & running in 5 mins

PM > Install-Package IronQR
```
Install-Package IronQR
```
→ 5-minute quick starts.
Simple API: QrWriter.Write("hello world"), myQr.Save().
Smart defaults: ML detection on by default, Slim Mode available to disable ML and prioritize speed.

Outcome: Ship QR features this sprint, not next quarter.

Enterprise performance

.NET 10, Core, Standard, or Framework
C#, VB.NET, F# supported. DigiCert signed binaries. Async methods and multithreading support for both read and write.
Deploys anywhere: Windows, Linux, macOS, iOS, Android, Docker, Azure, AWS.

Outcome: Scale from desktop tools to mobile apps to enterprise document processing.

ML-powered reading, any condition

Dedicated ML model detects QR codes in noisy, distorted, rotated, or partially obscured images.
Reads multiple QR codes simultaneously from a single image or PDF page without third-party rasterization.
Configurable error correction levels and fault tolerance (checksums, format awareness, null checking).

View Code Examples

Developer-first support & licensing

Perpetual license: buy once, use forever. Optional updates and renewals.
24/5 engineer support (24/7 in Premium). Real humans, median chat response <1 min.
30-day money-back guarantee. Not the right fit? Full refund, no questions.

Chat With an Engineer

For builders

Features you'll actually use:
- read/write QR codes
- Standard, Micro, rMQR formats
- logo embedding
- read from PDF natively
- async + multithreading
- ML detection model
- Slim Mode (no ML, faster)
- custom colors & transparency
- multi-QR detection
- configurable error correction
Works everywhere: Windows, Linux, macOS, Docker, Azure, AWS, cloud.

(30 days, fully-functional product)

For buyers

Trusted by millions of engineers across the Iron Suite.
Mobile-ready: MAUI support out of the box.
Works in Azure Functions and AWS Lambda with IronSoftware.Drawing.
Procurement-friendly: perpetual license, optional renewals, invoice available, multiple payment options (incl. local: Amazon Pay, Alipay, Apple Pay, iDEAL, SEPA, ACH).
30-day money-back guarantee.

See Licensing