← All 12 toolsCODE / Common standards, ready as PNG

Barcode Generator

Generate CODE128, CODE39, EAN, UPC and ITF barcode images in your browser.

FreeNo sign-upMobile friendlyLocal processing
TOOL 07

バーコード生成

CODE128・CODE39・EAN・UPC形式のバーコードを作成します。

● 端末内で処理

入力内容はサーバーへ送信・保存されません。

HOW TO USE

How to use Barcode Generator

Generate CODE128, CODE39, EAN, UPC and ITF barcode images in your browser.

What this tool does

Barcode standards support different character sets and lengths. CODE128 is flexible, while EAN and UPC are commonly used for product identification.

This tool creates the image only; it does not issue an official product number.

Useful for

  • Prototype inventory labels
  • Encode an internal reference number
  • Prepare artwork for a print layout

Three simple steps

  1. 01

    Enter the barcode value

  2. 02

    Choose the standard and bar width

  3. 03

    Check the result and download PNG

Tips for better results

Check the required length

EAN and UPC have specific digit and checksum requirements.

Print large enough

Very small or low-resolution output may not scan reliably.

Frequently asked questions

Does this issue a retail product code?

No. Obtain official numbers from GS1 or the relevant authority.

Is the value stored?

No. Generation happens in the browser.