Question 1

What is a barcode generator?

Accepted Answer

A barcode generator creates a machine-readable barcode from text, numbers, product codes, URLs, or structured data. You choose a barcode type, enter valid data, and download the result as SVG, PNG, or PDF.

Question 2

How do I create a barcode online?

Accepted Answer

Choose a barcode type, enter your data in the input field, customize size and colors, then click a download button to save SVG, PNG, or PDF.

Question 3

What is the difference between 1D and 2D barcodes?

Accepted Answer

A 1D barcode stores data in vertical bars and spaces and is scanned horizontally. A 2D barcode stores data in a matrix pattern and can hold much more information, including URLs, contact cards, and structured data.

Question 4

Which barcode type should I use for inventory?

Accepted Answer

Code 128 is the best general-purpose barcode for inventory, warehouse, and logistics labels. It supports letters, numbers, and most ASCII characters.

Question 5

Which barcode type should I use for retail products?

Accepted Answer

EAN-13 is used internationally; UPC-A is used in the US and Canada. Note that official retail use normally requires a GS1-assigned product number.

Question 6

Can I download the barcode as SVG or PNG?

Accepted Answer

Yes. After generating a barcode, you can download it as SVG (best for print), PNG (best for web and presentations), or PDF (best for print-ready files).

Question 7

Can I create barcodes in bulk?

Accepted Answer

Yes. The Batch Barcode Generator lets you upload a CSV file or paste rows from a spreadsheet, validate each row, and download all barcodes as a ZIP file.

Question 8

Are generated barcodes private?

Accepted Answer

Yes. Most barcodes are generated directly in your browser. The data you enter is not sent to our servers for basic barcode generation.

Question 9

Why is my barcode not scanning?

Accepted Answer

Common causes: barcode too small, quiet zone too narrow, low color contrast, invalid data, poor print quality, or scanner not supporting that barcode type.

Question 10

Do I need an official number for UPC or EAN barcodes?

Accepted Answer

For official retail use (selling through major stores), yes — you typically need a GS1-assigned company prefix. This tool generates the barcode image, but does not assign an official product number.

Barcode Type	Best For	1D / 2D	Notes
Code 128	Inventory and warehouse labels	1D	Best general-purpose business barcode
Code 39	Simple asset tags	1D	Older format, easy to use
EAN-13	International retail products	1D	Requires GS1 assignment for retail
UPC-A	US/Canada retail products	1D	Requires GS1 assignment for retail
UPC-E	Small retail packages	1D	Compact zero-suppressed UPC
QR Code	URLs and mobile scanning	2D	Best for web links and campaigns
Data Matrix	Small item marking	2D	Good for compact industrial labels
PDF417	IDs and documents	2D	Stores more data than 1D barcodes
Aztec Code	Tickets and transport	2D	Compact, no quiet zone needed
MaxiCode	Shipping and parcel routing	2D	Used in logistics and sorting

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