YUCTS Tools

Barcode Generator (EAN-13, EAN-8, UPC-A, Code 128)

Create EAN-13, EAN-8, UPC-A and Code 128 barcodes and save them as SVG or PNG. Calculates and verifies check digits and explains input mistakes. Everything runs in your browser.

  • Runs in your browser (no upload)

Enter 12 digits to add the check digit automatically, or 13 digits to verify it. Spaces and hyphens are ignored.

EAN-13 barcode: 4006381333931

✓ Check digit 1 was calculated and added.

Encoded data: 4006381333931

Image size: 339 × 158 px (including the blank quiet zones on both sides)

If you print it, avoid scaling it too much and test it with a real scanner.

EAN/UPC numbers for retail products must be built from a company prefix licensed by GS1. This tool does not issue numbers.

How to use

  1. Choose the barcode type (EAN-13, EAN-8, UPC-A or Code 128).
  2. Enter the data. For EAN/UPC, entering the digits without the check digit adds it automatically; entering all digits verifies it.
  3. Adjust the line width, height and text, then download a PNG or SVG.

FAQ

What is a check digit?

The last digit, calculated from the other digits with fixed weights of 3 and 1. It lets scanners detect misreads.

Should I use SVG or PNG?

SVG stays sharp at any size, which suits print and design software; PNG is handy for websites and office documents.

Can I make barcodes for products I sell?

You can create the symbol, but EAN/UPC numbers for retail products must be built from a company prefix licensed by GS1.

Notes & limitations

  • What you enter is processed only on this page and is not sent to YUCTS servers.
  • The tool does not issue or register numbers and cannot check whether a number is already used by a real product.
  • Code 128 accepts ASCII characters only (up to 80) and does not use GS1-128 (FNC1) or extended characters (FNC4).
  • Print size, resolution and paper can affect scanning. Always test with a real scanner before using a barcode.

Data sources