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A barcode generator turns a number or short text into a printable pattern of bars that a scanner can read. You type the value, choose a format and download the image to use on labels, tags, tickets or inventory sheets.

This tool supports Code 128, EAN-13, EAN-8, UPC-A, Code 39, ITF-14 and Codabar. Code 128 suits general text, EAN and UPC suit retail products, ITF-14 suits cartons and Code 39 and Codabar suit older logistics and library systems.

Choose a format, type your value and the barcode appears instantly. Adjust the bar width, height and colors, then click PNG or SVG to download it. A hint under the field shows exactly what each format accepts.

Code 128 is flexible and encodes any standard ASCII text, so it is popular for shipping and inventory. EAN-13 is a fixed 13-digit retail format used on products sold in shops worldwide. Use EAN-13 only when you have a proper product number.

EAN-13 needs 12 or 13 digits, EAN-8 needs 7 or 8 digits, UPC-A needs 11 or 12 digits and ITF-14 needs 13 or 14 digits. If you enter one digit fewer, the tool adds the correct check digit for you.

A check digit is the last number in EAN, UPC and ITF-14 codes. It is calculated from the other digits so a scanner can detect typing mistakes. Enter the shorter length and the generator calculates it automatically.

The value does not match the rules of the chosen format, for example letters in an EAN-13 or a wrong length. Read the hint under the input, correct the value or switch to Code 128, which accepts most text.

The image is a correct barcode, but retail EAN and UPC numbers are issued through GS1 so they stay unique worldwide. Use a number you have been assigned for products sold to retailers. For internal stock, shelves and tickets, any value is fine.

Use SVG for print and labels because it scales without losing sharpness. Use PNG for documents, spreadsheets and web pages. The PNG is exported at double resolution so it stays clear on high-density screens.

Keep the bars crisp and leave a blank margin on both sides. A bar width of 2 px or more and a height of at least 60 px works well on screen. For print, use the SVG and test a sample with your own scanner before running a large batch.

Yes. Untick the show text option to remove the human-readable value, or keep it so people can type the code by hand if a scan fails. You can also change the line and background colors, but keep high contrast.

Yes. Barcodes are drawn in your browser and your values are never uploaded or stored. The tool is free, needs no sign-up and works on phones, tablets and desktop browsers.