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QR code patterns increasing in density from a small version to a larger version.

Ahmad Tayyem

· May 16, 2026 · 8 min read

QR Code Versions Explained: Version 1 to Version 40

Understand QR Code Versions 1 to 40, module dimensions, capacity by data mode, error-correction tradeoffs, physical sizing, and how generators choose a version.

TechnicalQr code basicsQr code design