Free tools

Paste a URL → get the QR version, module grid, and minimum + recommended print size in mm and inches per the GS1 X-dimension spec.

Deep technical breakdown of any URL's QR encoding: per-segment modes, mask pattern, Reed-Solomon block layout, and concrete optimization recommendations.

Compose a GS1 Digital Link URL from a domain + GTIN + optional AIs (lot, expiry, serial) and download the rendered QR.

Color-coded module grid showing finder patterns, alignment, timing, and per-segment data regions overlaid on the rendered QR.

Pass / fail conformance check against the GS1 Digital Link spec, with parsed AI qualifiers and specific error messages.

Interactive composer — pick a primary key (GTIN, GLN, GSRN, ...), add qualifiers (lot, expiry, serial), validate against the spec, copy the URI.

Upload a QR code image and get back diagnostics on encoding, error correction, scanability, and packaging fit.

Daily run of the official GS1 Digital Link Resolver test suite against Closient — pass/fail counts, per-category breakdown, and 30-day history.

Public readiness dashboard — retailers, POS vendors, and wholesalers committed to or demonstrating 2D scanning at checkout for the GS1 Sunrise 2027 deadline.