Free Online QR Code Generator
9QRCode.com - Free QR Code Generator With Logo and Color
9qrcode.com is website to create QR Code online for free. With 9qrcode.com you can create QR codes with your logo and colors or unique shapes.
9QRCode.com helps you quickly create QR Code from website address, location, phone number, contact information, messages, Wifi,.. to put in business cards, Banner,.. for quick access to information (Use the camera to scan the QR Code and select “Go” to view the content of QR Code).
With 9qrcode.com you can easily create "QR Code Love" to send love messages by QR code. With icons available or uploading icons, images from your device.
9QRCode.com allows you to create QR codes with advanced features such as: Put Logo into QR Code with existing images or upload from your device, make QR Code colors more vivid and create styles QR Code.
What Is The QR Code?
QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed in 1994 for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached. In practice, QR codes often contain data for a locator, identifier, or tracker that points to a website or application. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to store data efficiently; extensions may also be used.
The Quick Response system became popular outside the automotive industry due to its fast readability and greater storage capacity compared to standard UPC barcodes. Applications include product tracking, item identification, time tracking, document management, and general marketing.
A QR code consists of black squares arranged in a square grid on a white background, which can be read by an imaging device such as a camera, and processed using Reed–Solomon error correction until the image can be appropriately interpreted. The required data is then extracted from patterns that are present in both horizontal and vertical components of the image.
History Of QR Code
The QR code system was invented in 1994 by the Japanese company Denso Wave. Its purpose was to track vehicles during manufacturing; it was designed to allow high-speed component scanning. QR codes are now used in a much broader context, including both commercial tracking applications and convenience-oriented applications aimed at mobile-phone users (termed mobile tagging). QR codes may be used to display text to the user, to add a vCard contact to the device of user, to open a Uniform Resource Identifier (URI), to connect to a wireless network, or to compose an email or text message. There are a great many QR code generators available as software or as online tools. The QR code has become one of the most-used types of two-dimensional code.