zedbar

Try It

Drop an image to scan barcodes and QR codes directly in your browser using WebAssembly.

Supported Formats

Installation

cargo install zedbar

zedbarimg image.png
zedbarimg --quiet barcode.jpg

[dependencies]
zedbar = "0.2"

use zedbar::{Scanner, Image, DecoderConfig};
use zedbar::config::{QrCode, Ean13};

// Create a scanner with specific formats
let config = DecoderConfig::new()
    .enable(QrCode)
    .enable(Ean13);
let mut scanner = Scanner::with_config(config);

// Load an image (grayscale, 1 byte per pixel)
let mut image = Image::from_gray(&grayscale_data, width, height)?;

// Scan for barcodes
for symbol in scanner.scan(&mut image) {
    println!("{:?}: {}", symbol.symbol_type(), symbol.text().unwrap());
}

npm install -g zedbar

zedbarimg image.png
zedbarimg --quiet barcode.jpg

npm install zedbar

import { scanImageBytes } from 'zedbar';
import { readFileSync } from 'fs';

// Read and scan an image file directly
const imageBytes = readFileSync('barcode.png');
for (const { symbolType, text } of scanImageBytes(imageBytes)) {
  console.log(`${symbolType}: ${text}`);
}

// Or use scanGrayscale if you already have grayscale data
import { scanGrayscale } from 'zedbar';
for (const { symbolType, text } of scanGrayscale(grayscaleData, width, height)) {
  console.log(`${symbolType}: ${text}`);
}