Code 128 Barcode Generator

What is a Code 128 barcode?

Code 128 is a high-density linear barcode that encodes all 128 ASCII characters. It's widely used in shipping, logistics, and inventory management because it can encode both letters and numbers efficiently.

How do I create a Code 128 barcode for free?

Enter your text or numbers in the input field above. The barcode generates instantly in your browser. Download it as PNG for printing or SVG for scalable graphics. No sign-up required.

What characters can Code 128 encode?

Code 128 supports all 128 ASCII characters including uppercase and lowercase letters, numbers 0-9, and special characters like @, #, $, %, etc. This makes it one of the most versatile barcode formats.

Is Code 128 the same as GS1-128?

GS1-128 (formerly UCC/EAN-128) uses Code 128 symbology but adds specific Application Identifiers (AIs) for standardized data like expiration dates and batch numbers. Code 128 is the underlying barcode format.

What is the maximum length of a Code 128 barcode?

There is no fixed maximum, but practical limits depend on scanner capabilities. Most scanners handle up to 80 characters. For best results, keep data under 48 characters to maintain scanability.