EFQRCode is a lightweight, pure-Swift library for generating stylized QRCode images with watermark or icon, and for recognizing QRCode from images, inspired by qrcode . Based on CoreGraphics , CoreImage , and ImageIO , EFQRCode provides you a better way to handle QRCode in your app, no matter if it is on iOS, macOS, watchOS, and/or tvOS. You can integrate EFQRCode through CocoaPods, Carthage, and/or Swift Package Manager. 中文介? Examples Demo Projects App Store You can click the App Store button below to download demo, support iOS, tvOS and watchOS: You can also click the Mac App Store button below to download demo for macOS: Compile Demo Manually To run the example project manually, clone the repo, demos are in the 'Examples' folder, remember run command sh Startup.sh in terminal to get all dependencies first, then open EFQRCode.xcworkspace with Xcode and select the target you want, run. Or you can run the following command in terminal: git clone git@github.com:EFPrefix/EFQRCode.git ; cd EFQRCode ; sh Startup.sh ; open ' EFQRCode.xcworkspace ' Requirements Version Needs 1.x Xcode 8.0+ Swift 3.0+ iOS 8.0+ / macOS 10.11+ / tvOS 9.0+ 4.x Xcode 9.0+ Swift 4.0+ iOS 8.0+ / macOS 10.11+ / tvOS 9.0+ / watchOS 2.0+ 5.x Xcode 11.1+ Swift 5.0+ iOS 8.0+ / macOS 10.11+ / tvOS 9.0+ / watchOS 2.0+ 6.x Xcode 12.0+ iOS 9.0+ / macOS 10.10+ / tvOS 9.0+ / watchOS 2.0+ Installation CocoaPods EFQRCode is available through CocoaPods . To install it, simply add the following line to your Podfile: pod 'EFQRCode' , '~> 6.2.2' Then, run the following command: $ pod install Carthage IMPORTANT : this workaround is necessary for Carthage to somewhat work in Xcode 12. Carthage is a decentralized dependency manager that builds your dependencies and provides you with binary frameworks. You can install Carthage with Homebrew using the following command: $ brew update $ brew install carthage To integrate EFQRCode into your Xcode project using Carthage, specify it in your Cartfile : github "EFPrefix/EFQRCode" ~> 6.2.2 Run carthage update to build the framework and drag the built EFQRCode.framework into your Xcode project. Swift Package Manager The Swift Package Manager is a tool for automating the distribution of Swift code and is integrated into the Swift compiler. Once you have your Swift package set up, adding EFQRCode as a dependency is as easy as adding it to the dependencies value of your Package.swift . dependencies: [ . package ( url : " https://github.com/EFPrefix/EFQRCode.git " , . upToNextMinor ( from : " 6.2.2 " ) ) ] Quick Start 1. Import EFQRCode Import EFQRCode module where you want to use it: import EFQRCode 2. Recognition A String Array is returned as there might be several QR Codes in a single CGImage : if let testImage = UIImage ( named : " test.png " ) ? . cgImage { let codes = EFQRCode . recognize ( testImage ) if !codes . isEmpty { print ( " There are \( codes . count ) codes " ) for (index , code ) in codes . enumerated ( ) { print ( " The content of QR Code \( index ) is \( code ) . " ) } } else { print ( " There is no QR Codes in testImage. " ) } } 3. Generation Create QR Code image, basic usage: Parameter Description content REQUIRED , content of QR Code size Width and height of image backgroundColor Background color of QRCode foregroundColor Foreground color of QRCode watermark Background image of QRCode if let image = EFQRCode . generate ( for : " https://github.com/EFPrefix/EFQRCode " , watermark : UIImage ( named : " WWF " ) ? . cgImage ) { print ( " Create QRCode image success \( image ) " ) } else { print ( " Create QRCode image failed! " ) } Result: 4. Generation from GIF Use EFQRCode.generateGIF to create GIF QRCode. Parameter Description generator REQUIRED , an EFQRCodeGenerator instance with other settings data REQUIRED , encoded input GIF delay Output QRCode GIF delay, emitted means no change loopCount Times looped in GIF, emitted means no change if let qrCodeData = EFQRCode . generateGIF ( using : generator , withWatermarkGIF : data ) { print ( " Create QRCode image success. " ) } else { print ( " Create QRCode image failed! " ) } You can get more information from the demo, result will like this: 5. Next Learn more from User Guide . Recommendations Please select a high contrast foreground and background color combinations; To improve the definition of QRCode images, increase size , or scale up using magnification (instead); Magnification too high/size too large/contents too long may cause failure; It is recommended to test the QRCode image before put it into use; You can contact me if there is any problem, both Issue and Pull request are welcome. PS of PS: I wish you can click the Star button if this tool is useful for you, thanks, QAQ... Other Platforms/Languages Platforms/Languages Link Objective-C https://github.com/z624821876/YSQRCode Java https://github.com/SumiMakito/AwesomeQRCode JavaScript https://github.com/SumiMakito/Awesome-qr.js Kotlin https://github.com/SumiMakito/AwesomeQRCode-Kotlin Python https://github.com/sylnsfar/qrcode Contributors This project exists thanks to all the people who already contributed to us. [ Contribute ] Backers If you think this project has brought you help, you can buy me a cup of coffee. If you like this project and are willing to provide further support for it's development, you can choose to become Backer in Open Collective . Thank you to all our backers! ?? [ Become a backer ] Sponsors Thanks for the help from MacStadium's Open Source Program . Thanks for the help from JetBrains's Open Source Support Program . Other Part of the pictures in the demo project and guide come from the internet. If there is any infringement of your legitimate rights and interests, please contact us to delete. Contact Email: eyrefree@eyrefree.org License EFQRCode is available under the MIT license. See the LICENSE file for more info.