120 edge-structure patterns

No interior alignment squares: versions 5–6 keep their alignment pattern near the lower-right corner. Art spans the complete QR field. Twelve families of low-resolution full-field visuals, ten compositions each. Every code opens jdt.engineering.

All 120 exported PNGs pass ZXing and OpenCV, with independently verified QR matrices. Click a design to enlarge.

Family contact sheets

Smooth uses 90% data-cell squares over the associated target, while all module centers and full-size structural cells stay intact. Uncheck Smooth for the original square modules. Required finder, timing, alignment and format patterns remain intact. Exact parity; zero intentionally damaged modules. These artistic codes use noncanonical padding after the terminator. Target agreement is visual similarity, not a scan-reliability score. Phone-camera and print qualification have not been performed. The bottom-right alignment square is retained; it has not been erased. Every function cell in the interior rectangle beyond the outer nine-module band is absent.

Parameters & validation manifest · Independent export audit · Reproducible source