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  1. QR code - Wikipedia

    QR codes may be used to display text to the user, to open a webpage on the user's device, to add a vCard contact to the user's device, to open a Uniform Resource Identifier (URI), to connect to a …

  2. QR Codes for Beginners: How Do QR Codes Work? - Better Tech Tips

    Sep 4, 2024 · A QR code is used to take digital information from a physical medium into a digital device. Using QR codes as a means for money changing hands has seen the largest use to date, next to …

  3. How the Heck Do QR Codes Work, Anyway? - How-To Geek

    Aug 8, 2025 · QR codes communicate tracking information when shipping products, and they appear on signage as a way to point pedestrians toward a video or a website with more information.

  4. What is a QR code? What are QR codes used for? - Digital Citizen

    Oct 11, 2025 · QR codes are square barcodes (two-dimensional barcodes) that were first developed and used in Japan. Like any other barcode, a QR code is nothing more than a way to store information in …

  5. What Is a QR Code and How It Works | Complete Guide 2025

    Oct 26, 2025 · What Is a QR Code? A QR code (Quick Response code) is a type of barcode that can store information such as text, URLs, contact details, or Wi-Fi credentials. When you scan it with a …

  6. What is a QR Code?

    QR codes store digital information (most commonly links to websites), in a pixelated black-and-white grid. You can scan this grid with a compatible smartphone or digital camera, at which point the …

  7. What is a QR Code & How Does It Work? A Simple Guide | QR ...

    Jan 1, 2025 · But have you ever stopped to wonder, what is a QR code? This simple-looking box is a gateway to a vast amount of digital information, connecting our physical world to the online universe …