QR codes, initially developed in the automotive industry for quick component identification, have become versatile tools used across various platforms such as websites, social media, and app stores. Unlike traditional barcodes, QR codes use a two-dimensional pixel format that can be captured by numerous devices, including smartphones. With the rise of QR code generators, individuals and businesses can create customized codes in-house, offering features like tracking, analytics, and design customization. Notable QR code generators include Visualead, known for its advanced technology and ability to design branded QR codes; QR-Code Generator, offering both free and premium features; and QR-Code Monkey, favored for its free unlimited scan potential and custom design options. Other options like QRStuff, Scanova, QRickit, and QRTiger offer various functionalities such as dynamic code generation, ease of use, and the ability to integrate with systems via APIs. Despite the wide array of features, users often face challenges, such as subscription issues and the need for technical skills when using APIs.