QRCoder 1.4.3

dotnet add package QRCoder --version 1.4.3
NuGet\Install-Package QRCoder -Version 1.4.3
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="QRCoder" Version="1.4.3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add QRCoder --version 1.4.3
#r "nuget: QRCoder, 1.4.3"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install QRCoder as a Cake Addin
#addin nuget:?package=QRCoder&version=1.4.3

// Install QRCoder as a Cake Tool
#tool nuget:?package=QRCoder&version=1.4.3


QRCoder is a simple library, written in C#.NET, which enables you to create QR codes. It hasn't any dependencies to other libraries and is available as .NET Framework and .NET Core PCL version on NuGet.


👉 Your first place to go should be our wiki. Here you can find a detailed documentation of the QRCoder and its functions.

Release Notes

The release notes for the current and all past releases can be read here: 📄 Release Notes

Usage / Quick start

You only need four lines of code, to generate and view your first QR code.

using (QRCodeGenerator qrGenerator = new QRCodeGenerator())
using (QRCodeData qrCodeData = qrGenerator.CreateQrCode("The text which should be encoded.", QRCodeGenerator.ECCLevel.Q))
using (QRCode qrCode = new QRCode(qrCodeData))
    Bitmap qrCodeImage = qrCode.GetGraphic(20);

Optional parameters and overloads

The GetGraphics-method has some more overloads. The first two enable you to set the color of the QR code graphic. One uses Color-class-types, the other HTML hex color notation.

//Set color by using Color-class types
Bitmap qrCodeImage = qrCode.GetGraphic(20, Color.DarkRed, Color.PaleGreen, true);

//Set color by using HTML hex color notation
Bitmap qrCodeImage = qrCode.GetGraphic(20, "#000ff0", "#0ff000");

The other overload enables you to render a logo/image in the center of the QR code.

Bitmap qrCodeImage = qrCode.GetGraphic(20, Color.Black, Color.White, (Bitmap)Bitmap.FromFile("C:\\myimage.png"));

There are a plenty of other options. So feel free to read more on that in our wiki: Wiki: How to use QRCoder

Help & Issues

If you think you have found a bug or have new ideas or feature requests, then feel free to open a new issue: https://github.com/codebude/QRCoder/issues

In case you have a question about using the library (and couldn't find an answer in our wiki), feel free to open a new question/discussion: https://github.com/codebude/QRCoder/discussions

QRCoder is a project by Raffael Herrmann and was first released in 10/2013. It's licensed under the MIT license.

Product Compatible and additional computed target framework versions.
.NET net5.0 is compatible.  net5.0-windows was computed.  net5.0-windows7.0 is compatible.  net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net6.0-windows7.0 is compatible.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp1.0 was computed.  netcoreapp1.1 was computed.  netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard1.3 is compatible.  netstandard1.4 was computed.  netstandard1.5 was computed.  netstandard1.6 was computed.  netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net35 is compatible.  net40 is compatible.  net403 was computed.  net45 was computed.  net451 was computed.  net452 was computed.  net46 was computed.  net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen30 was computed.  tizen40 was computed.  tizen60 was computed. 
Universal Windows Platform uap was computed.  uap10.0 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (309)

Showing the top 5 NuGet packages that depend on QRCoder:

Package Downloads

Google Authenticator Two-Factor Authentication Library (Not officially affiliated with Google.)


Plz don't install.


Application Component for the Alliance Business Suite.


1、基础数据操作通用抽象库 2、.netore升级到3.1 2、补充nodejs 等操作 3、添加缓存ICacheMapperDbProvider, 处理文件缓存导致文件拒绝访问问题


Util.Tools.QrCode是Util应用框架的二维码操作类库。 Util是一个.net core平台下的应用框架,旨在提升小型团队的开发输出能力,由常用公共操作类(工具类)、分层架构基类、Ui组件,第三方组件封装,第三方业务接口封装,配套代码生成模板,权限等组成。

GitHub repositories (53)

Showing the top 5 popular GitHub repositories that depend on QRCoder:

Repository Stars
Bilibili Downloader. 一款命令行式哔哩哔哩下载器.
Accept Bitcoin payments. Free, open-source & self-hosted, Bitcoin payment processor.
Xray,V2ray,Trojan,NaiveProxy, Trojan-Go, ShadowsocksR(SSR),Shadowsocks-libev及相关插件,MTProto+TLS 一键安装工具,windows下用(一键科学上网)
Version Downloads Last updated
1.4.3 9,787,540 12/12/2021
1.4.2 1,309,434 11/23/2021
1.4.1 5,549,908 11/17/2020
1.3.9 3,471,795 4/8/2020
1.3.7 9,124 4/7/2020
1.3.6 2,682,166 6/25/2019
1.3.5 2,158,976 11/23/2018
1.3.4 102,650 11/17/2018
1.3.3 818,736 4/22/2018
1.3.2 658,233 10/21/2017
1.3.1 18,866 10/3/2017
1.3.0 81,545 9/23/2017
1.2.9 158,663 6/15/2017
1.2.8 31,847 5/18/2017
1.2.7 26,594 4/30/2017
1.2.6 64,735 3/16/2017
1.2.5 67,077 1/28/2017
1.2.4 3,157 1/26/2017
1.2.3 26,386 12/10/2016
1.2.2 43,540 9/13/2016
1.2.1 2,699 9/10/2016
1.2.0 8,558 9/8/2016
1.1.9 21,159 7/7/2016
1.1.8 2,993 6/27/2016
1.1.7 90,784 5/18/2016
1.1.6 2,548 5/18/2016
1.1.5 9,127 5/16/2016