qrcode on npm is pretty good. Very simple to use if you just need to convert a string to a QR code, and it has some advanced options if you want to get fancy.

qrcode on npm is pretty good. Very simple to use if you just need to convert a string to a QR code, and it has some advanced options if you want to get fancy. https://www.npmjs.com/package/qrcode https://www.npmjs.com/package/qrcode