QR Code vs Barcode: What’s the Difference? | 1D vs 2D Codes Explained (2025 Update) 📱 Ever scanned a QR code and wondered how it differs from a traditional barcode? This guide breaks down the key differences between QR codes and barcodes — including structure, data capacity, use cases, and how they’re transforming industries in 2025. 🔍 A barcode is a 1D (one-dimensional) code that stores data linearly and is commonly used in retail for product identification. In contrast, a QR code is a 2D (tw