QR Code generator library — Project Nayuki https://www.nayuki.io/page/qr-code-generator-library https://github.com/nayuki/QR-Code-generator MIT License. The full copyright and license notice is retained at the top of qrcodegen.mjs and qrcodegen.source.ts, alongside this file. The TypeScript source was retrieved on 2026-10-27 and compiled to ES2020 using TypeScript 5.9.3. A default ES module export was added. No runtime dependency or remote generation service is required. This site uses UTF-8 ECI, medium error correction (automatically increased where possible) and a four-module quiet zone.