3D QR Designer

A web tool for making 3D-printable QR codes. Built with React and Three.js, and it runs entirely in the browser.

Live: 3d-qrgen.vercel.app

Domain change

The app has moved to 3d-qrgen.vercel.app. The old domain, 3dqrdesign.site, will stay up until October 2026.

Features

• QR content: URL, Wi-Fi, email
• 3D text (Pretendard font)
• Image to 3D shape (marching squares)
• Stand or business card base (sharp, rounded, or chamfered corners)
• OBJ export with each part as a separate object, for multi-color printing (Bambu AMS, Prusa MMU, etc.)
• No backend: what you type, including Wi-Fi passwords, never leaves the browser

Running locally

Requires Node.js 18+.

git clone https://github.com/engmung/3dQRGEN.git
cd 3dQRGEN/frontend
npm install
npm run dev

Use npm run build for a production build.

Author

Lee Seunghun (GitHub, portfolio). I'm also working on Patternflow, an open-source LED audiovisual synthesizer.

License

Code is MIT. Bundled fonts (Pretendard, Roboto) are under the SIL Open Font License 1.1.