QSeq.app is live — Meerv Inc. opens its print-true GS1 identity generator to the printing industry

MONTRÉAL, June 13, 2026 — Meerv Inc. announces the general availability of QSeq, its generator for Barcodes, QR Codes and Data Matrix codes. QSeq is now usable directly in any browser at qseq.app — written in Dart/Jaspr from the same core as the native macOS and Windows apps — so an identity minted on the web is byte-for-byte the one minted on the desktop. QSeq exists to make it trivial to mint correct, durable, standards-based identities for physical things, and to do it in a way anyone can use, audit and build on.

Every object in a modern supply chain needs an identity a scanner can read and a server can resolve: a GTIN, a serialized SGTIN, or a web-resolvable GS1 Digital Link. Getting that right is fiddly — the data must follow GS1/EPC rules, the symbol must hold the bytes at the chosen error-correction level, a logo must not destroy the code, and the print must come out at the exact physical size on the label. Most tools get one or two of these right. QSeq is built to get all of them right at once.

Web · macOS · Windows — now available

QSeq v1.5.3

Tap to open qseq.app — generate in the browser, or download the native macOS and Windows builds from the same page.

QSeq's defining feature is a live physical-size calculator: the printed outer perimeter is shown as a function of the centre logo dead-space, the byte count, the printing resolution (DPI), and the error-correction level. It is correct by construction (SGTIN, EPC Tag URI and GS1 Digital Link encoders that follow the standards, including GTIN → SGTIN serialization via AI 21), print-true (a size calculator and mm/inch/vernier rulers, plus PNG exports carrying a pHYs chunk so print software reads the true physical size), damage-tolerant (a structure-aware logo dead-space that respects the symbol's error-correction budget and never erases its finder, timing or alignment patterns), and serial-ready (a whole sheet of sequentially-numbered codes with a full log of every encoded link).

For the printing industry collaborating with Meerv Inc. — converters, label houses, and flexographic printers — QSeq is the front end that mints the identities the rest of the stack depends on. It exports PNG at exact DPI, SVG and PDF vector (optionally with measurement rulers), fills A4 / US Letter / A3 / US Legal pages or a flexographic continuous web with serialized codes, and pairs a GS1-128 with a QR / Data Matrix on one combined label. Every sheet increments the serial, so no two printed codes name the same thing, and the serialization log accounts for every identifier minted.

That matters because a Stock Keeping Unit — or any bare, class-level GTIN — names a kind of thing, not a thing. QSeq serializes everything and lets you point each GS1 Digital Link at a resolver, including a built-in QDat.io preset that rewrites the domain to tapdpp.qdat.io — so a code minted in QSeq resolves spatiotemporally on QDat.io's Digital Product Passport module. See how QDat.io resolves a Digital Product Passport.

About QSeq and Meerv Inc.
QSeq is a Meerv Inc. product, released source-available (PolyForm Noncommercial 1.0.0) in service of Sustainable Identity on Every Thing (SIoT). QDat.io, also a brand of Meerv Inc., provides the data infrastructure that resolves those identities — connecting edge devices, RFID readers and operator inputs to a unified, verifiable data layer for logistics, food safety, compliance, and Digital Product Passport workflows.

For inquiries: hello@qdat.io