QR Generator with Login

This tool encodes data into QR codes with a secure login to save and manage codes. It supports common payload types such as URLs, plain text, vCard contacts, Wi‑Fi credentials, and simple messages. The objective is reproducible encoding that yields scannable outputs across formats and sizes, while associating each code with a user account for later retrieval.
Core logic and features include payload validation, data-type aware encoders, and a standards‑aligned encoder library. Required features include payload input, encoding options, export formats, and authentication plus saved codes. Optional/advanced capabilities include multiple payloads per project, versioned saves, predefined templates, and programmatic generation via an API.
Use cases include marketing posters, product labeling, event tickets, and packaging. The tool emphasizes data integrity, cross‑device access, and easy export to PNG or SVG for both print and digital distribution.