QR Code vs Barcode
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Mas Generadores QR
1D vs 2D
Barcodes store data only horizontally (1D). QR codes store both ways (2D) — 350x more capacity. A UPC barcode holds 12 digits. A QR code holds up to 7,089 characters.
Scanning
Barcodes need laser scanners. QR codes work with any smartphone camera — no special hardware. This accessibility is why QR codes dominate payments, menus, and marketing.
Use Cases
Barcodes: retail, inventory. QR codes: payments, WiFi, contacts, URLs, events, and more.