ngx-scanner-qrcode
This library is built to provide a solution scanner QR code. This library takes in raw images and will locate, extract and parse any QR code found within.
cdigit
Collection of check digit algorithms implemented in JavaScript
gtin-validator
Utilities to validate and work with GTIN and UPC product codes.
gtin13generator
A robust utility for automatically generating and validating GTIN-13 numbers, ideal for e-commerce platforms, inventory management, and integration with Google Shopping.