what is qrcoder fr?

Qrcoder is a plugin for Flutter apps that generates QR codes. If you're building a mobile or web app and need to turn a piece of text, like a URL, a product ID, or a contact card, into a scannable QR code, this tool handles the conversion for you. The way it works is straightforward from a developer's perspective: you give it a string of text, and it gives you back a grid (a two-dimensional matrix) of ones and zeros that represents the QR code pattern. Your app can then take that grid and draw it on screen however you like, whether as a traditional black-and-white square or something more stylized. Along with the text itself, you can adjust a couple of settings, such as choosing the error-correction level (which controls how much damage the code can take before it stops scanning) and whether to include the standard quiet border around the edges. This would be useful for Flutter developers building apps that need to share information visually. For example, a restaurant menu app could generate a QR code for each table, a ticketing app could produce codes for event entry, or a payment app could create codes that customers scan to complete a transaction. Since the plugin returns the raw data rather than a finished image, developers have full control over how the final QR code looks. The project is adapted from existing JavaScript and Swift QR code libraries, so the underlying logic is proven and portable. The README is fairly minimal, so developers relying on it will likely need to look at the included example project to see practical usage beyond the basic setup. It's a lightweight, focused tool that does one specific job without unnecessary extras.