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The project Ada Bar Codes provides a framework for generating various types of bar codes (1D, or 2D, like QR codes) on different output formats and devices.
Alire crate: https://alire.ada.dev/crates/bar_codes
Mirror: https://github.com/zertovitch/ada-bar-codes
Odin is a map generator derived from map generation experiments for a video game called Crypts of Eldor; after requests to release the tool, a decision was made to release a map editor based on this code. Additionally, a Java API is provided so that the map generator can be integrated into new software.
With J QRCodeGenerator you can create QR Codes easily & offline
A QRcode is a two dimensional barcode that stores information in black and white dots. J QRCodeGenerator is a simple easy to use QRcodegenerator that works offline and completely free.
Current version support to generate QRCode for plain text, website(URL), SMS, and Email (more will be added in next version).