QR generator
Turn any link or text into a QR code (PNG or SVG), free and instant. Great for posters, menus, cards or packaging where people scan with their phone. Need it automated? The API is right below.
For automation (n8n, Make or your code)
This page is free for manual use. To generate QR codes automatically (e.g. one per order in n8n) use the API with your API key. Each QR costs 1 credit of your plan. You need an account and an API key, which you create free in your dashboard.
Easy mode (n8n / Make): send the link as-is
POST https://api.cofferdock.com/qr?size=512 x-api-key: TU_API_KEY Content-Type: text/plain https://tu-enlace.com
It returns the QR image directly (in n8n, set the HTTP node to Response Format = File).
Options (in the URL, as Query Parameters)
size: side in pixels (64–2000, default 512)format:png(default) orsvg(lossless when printed big)dark/light: dots / background color (hex, e.g.000000)margin: white border (0–20, default 2)
PDF or image? Upload it to Google Drive or Dropbox, copy its share link and pass it as the body: the QR will point to your file.
Step-by-step guides: How to generate a QR code in n8n (with a single node), How to generate a QR code in Make (HTTP module), How to generate a QR code in Zapier (Webhooks).