QRCoder 1.4.2

.NET 5.0 This package targets .NET 5.0. The package is compatible with this framework or higher. .NET Standard 1.3 This package targets .NET Standard 1.3. The package is compatible with this framework or higher. .NET Framework 3.5 This package targets .NET Framework 3.5. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package QRCoder --version 1.4.2
                    


                    

                
NuGet\Install-Package QRCoder -Version 1.4.2
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="1.4.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="QRCoder" Version="1.4.2" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="QRCoder" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add QRCoder --version 1.4.2
                    


                    

                
#r "nuget: QRCoder, 1.4.2"
#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. 
#:package QRCoder@1.4.2
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=QRCoder&version=1.4.2
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=QRCoder&version=1.4.2
                    


                            Install as a Cake Tool

About

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.

Documentation

👉 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 five lines of code, to generate and view your first QR code.

QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode("The text which should be encoded.", QRCodeGenerator.ECCLevel.Q);
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 a bug or have new ideas/feature requests, then feel free to open a new issues: 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 was computed.  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.  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.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-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 (447)

Showing the top 5 NuGet packages that depend on QRCoder:

Package Downloads
GoogleAuthenticator

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

Application Component for the Alliance Business Suite.
2AxisTechnology.Core.CL

Plz don't install.
TwoFactorAuth.Net.QRCoder

QR code provider for TwoFactorAuth.Net using the excellent QRCoder library (https://github.com/codebude/QRCoder/)
Util.Tools.QrCode

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 (76)

Showing the top 20 popular GitHub repositories that depend on QRCoder:

Repository Stars
2dust/v2rayN
A GUI client for Windows, Linux and macOS, support Xray and sing-box and others
nilaoda/BBDown
Bilibili Downloader. 一个命令行式哔哩哔哩下载器.
RayWangQvQ/BiliBiliToolPro
B 站（bilibili）自动任务工具，支持docker、青龙、k8s等多种部署方式。敏感肌也能用。
Richasy/Bili.Uwp
适用于新系统UI的哔哩
btcpayserver/btcpayserver
Accept Bitcoin payments. Free, open-source & self-hosted, Bitcoin payment processor.
yaobiao131/downkyicore
哔哩下载姬(跨平台版)downkyi，哔哩哔哩网站视频下载工具，支持批量下载，支持8K、HDR、杜比视界，提供工具箱（音视频提取、去水印等）。
proxysu/ProxySU
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）
immense/Remotely
A remote control and remote scripting solution, built with .NET 8, Blazor, and SignalR.
kwsch/PKHeX
Pokémon Save File Editor
stratumauth/app
📱 Two-Factor Authentication (2FA) client for Android + Wear OS
SteamRE/SteamKit
SteamKit2 is a .NET library designed to interoperate with Valve's Steam network. It aims to provide a simple, yet extensible, interface to perform various actions on the network.
SteamRE/DepotDownloader
Steam depot downloader utilizing the SteamKit2 library.
Coolapk-UWP/Coolapk-UWP
一个基于 UWP 平台的第三方酷安客户端
Uotan-Dev/UotanToolboxNT
现代化 Android & OpenHarmony 工具箱 | A Modern Toolbox for Android & OpenHarmony Devices
Nethereum/Nethereum
Ethereum .Net cross platform integration library
Nexus-Mods/NexusMods.App
Home of the development of the Nexus Mods App
real-zony/ZonyLrcToolsX
ZonyLrcToolsX 是一个能够方便地下载歌词的小软件。
Paving-Base/APK-Installer
An Android Application Installer for Windows
s1t5/mail-archiver
Mail-Archiver is a web application for archiving, searching, and exporting emails from multiple accounts. Featuring folder sync, attachment support, mailbox migration and a dashboard.
HyPlayer/HyPlayer
仅供学习交流使用 | 第三方网易云音乐播放器 | A Netease Cloud Music Player
Version Downloads Last Updated
1.7.0 1,348,408 10/9/2025
1.6.0 8,947,339 6/30/2024
1.5.1 1,508,663 4/27/2024
1.5.0 26,161 4/26/2024
1.4.3 21,216,359 12/12/2021
1.4.2 2,182,771 11/23/2021
1.4.1 7,745,022 11/17/2020
1.3.9 4,442,782 4/8/2020
1.3.7 25,279 4/7/2020
1.3.6 3,284,303 6/25/2019
1.3.5 2,962,658 11/23/2018
1.3.4 183,033 11/17/2018
1.3.3 955,391 4/22/2018
1.3.2 807,097 10/21/2017
1.3.1 31,796 10/3/2017
1.3.0 133,554 9/23/2017
1.2.9 204,592 6/15/2017
1.2.8 44,964 5/18/2017
1.2.7 38,290 4/30/2017
1.2.6 86,788 3/16/2017
Loading failed

Release notes: https://github.com/codebude/QRCoder/wiki/Release-notes