Vol. I · Edition 2026
Every visual code, catalogued.
Barcoder is a reference work covering the QR, barcode and visual-code standards in active use across the world's payment networks, retail systems and government schemes — cross-referenced with the wallets and rails that ride them.
WHAT BARCODER COLLECTS
01
Standards
Every QR, barcode and visual-code specification we can find evidence for — EMV merchant-presented modes, national instant-payment QRs, retail GS1 codes, niche transit codes.
Browse 463 entries →
02
Payments
A page per country covering which schemes operate there, what visual codes those schemes use, and how interoperability works at the merchant counter.
Browse 197 countries →
03
Wallets
One page per wallet — GCash, Alipay, Revolut, M-Pesa and the rest — covering which visual-code standards each supports, in which markets, and against which underlying rails.
Browse 1076 wallets →
THE METHOD
One file per page.
One source of truth.
Every page on this site is rendered from a single markdown file checked into the same repository you're reading this from. There is no CMS. The content is the repo.
Country reports start as long-form research in reports/. Skills under .claude/skills/ extract per-standard and per-country pages into docs/. The backend reads those files and the frontend renders them. Boring on purpose.
START HERE