What is the most common barcode format?

CODE128 is the most versatile and common format for general use, as it supports both numbers and letters. If you are generating a barcode for a retail product in the US, you likely need a UPC-A. For retail products in Europe and other regions, EAN-13 is the standard.

Why am I getting an "Invalid data" error?

Certain barcode formats have strict rules about what characters they can contain. For example, UPC and EAN barcodes can ONLY contain numbers (no letters), and they must be a specific length (12 digits for UPC, 13 digits for EAN). CODE128 allows for almost any alphanumeric character.

Are these barcodes scannable by physical scanners?

Yes! The downloaded PNG files are highly accurate and can be printed on labels or scanned directly from a screen using physical laser scanners, smartphone apps, or POS systems.

Barcode Generator — Create Custom Barcodes Free

What is the Barcode Generator?

The Barcode Generator is a powerful, free tool for creating standard 1D barcodes. Whether you need a CODE128 barcode for internal inventory tracking, or a UPC/EAN barcode for retail packaging, this tool generates high-quality, perfectly scannable images instantly.

Supported Formats

CODE128: The most robust alphanumeric format, highly recommended for general internal use.
CODE39: An older alphanumeric format, less compact than CODE128.
UPC-A / UPC-E: The standard retail barcode formats used primarily in North America.
EAN-13 / EAN-8: The standard retail barcode formats used internationally.
ITF-14 / MSI / Pharmacode: Specialized numeric formats for shipping, inventory, and pharmaceutical applications.

How to use the Generator

Enter your data: Type your product ID, SKU, or text into the input field.
Select the format: Choose the barcode type that matches your requirements. (If you aren’t sure, stick with CODE128).
Customize appearance: Use the sliders to adjust the bar width and height. You can also turn the human-readable text on or off, and change the background/line colors.
Download: Click the download button to instantly save a crisp PNG image of your barcode.

100% Secure and Private

Our Barcode Generator uses the renowned jsbarcode engine to render barcodes completely offline inside your web browser. The data you enter is never transmitted to a server, ensuring your internal SKUs and product codes remain totally private.

Barcode Generator — Create Custom Barcodes Free

What is the Barcode Generator?

Supported Formats

How to use the Generator

100% Secure and Private

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