Question 1

Which barcode formats are supported?

Accepted Answer

Supports common 1D barcodes such as CODE128, CODE39, EAN-13, EAN-8, UPC-A, ITF-14, MSI, Pharmacode, Codabar. Different formats have different content requirements; for example, EAN-13 must be 12 or 13 digits, UPC-A is 12 digits, and if filled incorrectly, the preview will indicate invalid.

Question 2

What is the difference between barcodes and QR codes?

Accepted Answer

Barcodes are 1D codes, encoded with vertical bars of varying thickness, small capacity, mostly used for retail products (like EAN/UPC); QR codes are 2D matrices, large capacity, can store URLs and other long texts. This tool generates 1D barcodes; for QR codes, please use the QR code generator tool on this site.

Question 3

How to choose between exporting PNG and SVG?

Accepted Answer

For direct insertion into documents, chats, or printing receipts, choose PNG (bitmap); for lossless scaling, printing, or further editing in vector software, choose SVG (vector). Both formats are generated locally in the browser; content is not uploaded to the server.

Barcode Generator

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