Question 1

What is ZXing and how is it used in this barcode and QR code tool?

Accepted Answer

ZXing is an open-source barcode and QR code processing library that supports 1D and 2D formats. This online barcode and QR code generator, scanner, and decoder uses a browser-based implementation inspired by ZXing technology to scan, generate, and decode barcodes and QR codes locally without uploading data to a server.

Question 2

What barcode and QR code formats are supported?

Accepted Answer

The tool supports commonly used formats including QR Code, DataMatrix, PDF417, Aztec, UPC-A, UPC-E, EAN-8, EAN-13, CODE39, CODE93, CODE128, ITF, Codabar, WiFi QR codes, and vCard contact QR codes.

Question 3

Why is my barcode or QR code scanner camera not working?

Accepted Answer

Barcode or QR code scanner camera issues are usually caused by missing browser permissions, insecure HTTP connections, or another application using the camera. Allow camera access, use HTTPS, close other camera apps, and update your browser.

Question 4

What are the best practices for generating scannable barcodes and QR codes?

Accepted Answer

For reliable scanning, use high contrast colors, sufficient code size, proper error correction, and maintain a clear quiet zone around the code. Always test generated barcodes and QR codes using multiple scanners before deployment.

Question 5

How do I generate barcodes or QR codes in bulk?

Accepted Answer

Bulk barcode and QR code generation allows you to create multiple codes at once. Enter one value per line, select the desired format, and generate all codes in a single action. This feature is ideal for inventory management, product labeling, logistics, and asset tracking.

Question 6

Is my data secure when using this barcode and QR code tool?

Accepted Answer

Yes. All barcode and QR code processing happens locally in your browser. No images or data are uploaded, stored, logged, or tracked, ensuring complete privacy and security.

Question 7

Is this tool a good alternative to ZXing.org for barcode and QR code scanning?

Accepted Answer

Yes. This browser-based tool is a modern alternative to ZXing.org. It enables barcode and QR code scanning, decoding, and generation directly in the browser without software installation, while also supporting bulk barcode and QR code creation.

Question 8

Why is my barcode or QR code not scanning properly?

Accepted Answer

Scanning issues are usually caused by low contrast, small code size, poor image quality, incorrect format selection, or missing quiet zones. Using proper sizing, high contrast colors, and testing with multiple scanners improves scan reliability.

ZXing Decoder Online

How to generate barcode or qrcode using ZXing Decoder Online.