How to Generate Fast QR Codes in Rust using qrcode Crate

Rust provides zero-cost abstractions and memory safety, making it ideal for high-performance barcode generation and WebAssembly modules.

1. Cargo.toml

[dependencies]
qrcode = "0.14"

2. Rust Code Example

use qrcode::QrCode;
use image::Luma;

fn main() {
    let code = QrCode::new(b"https://www.pngqr.com").unwrap();
    let image = code.render::<Luma<u8>>().build();
    image.save("qrcode.png").unwrap();
}