QR Code

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QR Code stands for Quick Response Code and is a type of matrix barcode (or two-dimensional barcode) first designed in 1994 for the automotive industry in Japan. QR Codes are now widely used in various applications such as product tracking, item identification, document management, and marketing due to their fast readability and greater storage capacity compared to standard UPC barcodes. This topic covers the creation, usage, and applications of QR Codes, including how they are generated and read by devices. It also explores the technology behind QR Codes, their standards, and their impact on industries such as retail, logistics, and mobile payments.

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Tamsiree / RxTool

Star 12.3k

java share tools utils qrcode dialog barcode progressbar toast sidebar alipay seat wxpay netspeed wechatpay shoppingview likeview zip4j

Updated Aug 1, 2023
Kotlin

x-hw / amazing-qr

Star 10.8k

amazing QRCode generator in Python (supporting animated gif) - Python amazing Er Wei Ma Sheng Cheng Qi (Zhi Chi gif Dong Tai Tu Pian Er Wei Ma )

picture qrcode qr-code gif amazing qrcode-generator

Updated Dec 1, 2023
Python

claudiodangelis / qrcp

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Star 10.4k

Transfer files over wifi from your computer to your mobile device by scanning a QR code without leaving the terminal.

cli golang utility command-line qrcode

Updated Dec 4, 2025
Go

mrousavy / react-native-vision-camera

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Star 9.2k

A powerful, high-performance React Native Camera library.

react javascript android ios instagram library snapchat typescript react-native ai camera native scanner qrcode barcode vision qr react-native-camera jsi worklet

Updated Jan 7, 2026
Swift

bingoogolapple / BGAQRCode-Android

Star 8k

QRCode Sao Miao Er Wei Ma , Sao Miao Tiao Xing Ma , Xiang Ce Huo Qu Tu Pian Hou Shi Bie , Sheng Cheng Dai Logo Er Wei Ma , Zhi Chi Wei Bo Wei Xin QQ Er Wei Ma Sao Miao Yang Shi

qrcode qrcode-scanner qrcode-generator qrcode-android

Updated Dec 10, 2024
C

ggerganov / ggwave

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Star 7.5k

Tiny data-over-sound library

python arduino serverless ecc qrcode internet-of-things modem ultrasound fsk pairing sound-library data-over-sound

Updated Aug 26, 2025
C++

bndw / wifi-card

Star 7.1k

Print a QR code for connecting to your WiFi (wificard.io)

react qrcode wifi dogs-over-cats wificard

Updated Feb 14, 2026
JavaScript

latentcat / qrbtf

Star 6.9k

AI & parametric QR code generator. AI & Can Shu Hua Er Wei Ma Sheng Cheng Qi . https://qrbtf.com

generator qrcode qr-code qr-codes qr qrcode-generator art-qr art-qr-code art-qrcode

Updated Apr 17, 2025
TypeScript

mebjas / html5-qrcode

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Star 6k

A cross platform HTML5 QR code reader. See end to end implementation at: https://scanapp.org

javascript html5 camera qrcode barcode scanning

Updated Dec 1, 2025
TypeScript

zxlie / FeHelper

Star 5.5k

FeHelper--WebQian Duan Zhu Shou (Awesome!Chrome & Firefox & MS-Edge Extension, All in one Toolbox!)

chrome-extension json firefox-addon crontab qrcode microsoft-edge json-format qrcode-generator fehelper qrcode-decoder markdown-html color-transfer web-fehelper image-base64 code-beautify code-compress microsoft-edge-extension chatgpt

Updated Nov 26, 2025
JavaScript

Shane32 / QRCoder

Star 5.1k

A pure C# Open Source QR Code implementation

c-sharp csharp qrcode barcode qrcoder-generator girocode qrcode-generator swissqrcode

Updated Feb 21, 2026
C#

endroid / qr-code

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Star 4.8k

PHP QR Code library that helps you create QR codes in a jiffy

php factory twig-extension qrcode data-uri reader

Updated Feb 5, 2026
PHP

EFPrefix / EFQRCode

Star 4.7k

A better way to operate QRCode in Swift, support iOS, macOS, watchOS, tvOS, and/or visionOS.

swift ios generator watchos qrcode barcode barcode-generator qr-code recognizer qr-generator qr-codes qr qrcode-scanner hacktoberfest qrcodes qrcode-generator barcodes qrcode-reader barcode-scanner qr-code-generator

Updated Aug 2, 2025
Swift

cozmo / jsQR

Star 4k

A pure javascript QR code reading library. This library takes in raw images and will locate, extract and parse any QR code found within.

typescript qrcode qr-code qr qrcode-reader qr-scanner qr-parsing-library

Updated Dec 29, 2023
TypeScript

Bubka / 2FAuth

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Star 3.8k

A Web app to manage your Two-Factor Authentication (2FA) accounts and generate their security codes

otp qrcode two-factor self-hosted webapp totp hotp two-factor-authentication 2fa 2factor

Updated Feb 25, 2026
PHP

jenly1314 / ZXingLite

Star 3.3k

ZXingDe Jing Jian Ji Su Ban ,You Hua Sao Ma He Sheng Cheng Er Wei Ma /Tiao Xing Ma ,Nei Zhi Shan Guang Deng Deng Gong Neng . Sao Miao Feng Ge Zhi Chi :Wei Xin De Xian Tiao Yang Shi ,Zhi Fu Bao De Wang Ge Yang Shi . Ji Ju Dai Ma Qing Song Yong You Sao Ma Gong Neng ,ZXingLiteRang Ji Cheng Sao Ma Geng Jian Dan .