Free CODE128 Barcode Generator

Create high-density alphanumeric barcodes for professional inventory and logistics tracking without watermarks.

Live Preview

Barcode Live Preview Graphic Interactive barcode preview rendering area that reflects your input values. Barcode Preview

How to Generate a Barcode

Follow these four simple steps to create and download your custom barcode in seconds.

1

Enter barcode text

Type the value or numbers you want to encode into the input field.

2

Select barcode format

Choose from standard formats like CODE128, EAN13, or UPC depending on your needs.

3

Customize barcode appearance

Adjust width, height, colors, and toggle text visibility using the easy sliders.

4

Download barcode image

Instantly download your barcode in high-quality PNG or SVG, or copy it directly.

Ultimate Guide to CODE128 Barcodes

What is CODE128?

CODE128 is a high-density, very robust linear barcode standard capable of encoding all 128 characters of the ASCII character set. This makes it incredibly versatile compared to other 1D barcodes like EAN or UPC, which are limited to numeric data only.

Because of its ability to pack a large amount of information into a small space, it has become the gold standard for inventory management, shipping labels, and internal asset tracking.

Why choose CODE128 for your business?

When you use our CODE128 generator, you benefit from a format that is universally supported by almost every laser and camera-based barcode scanner. It includes a mandatory checksum character, ensuring that the data read by the scanner is 100% accurate every time.

Frequently Asked Questions

Find answers to common questions about our free barcode generator.

Yes, unlike CODE39, CODE128 can encode the full ASCII character set, including both uppercase and lowercase letters, numbers, and symbols.

For long, narrow labels typical of warehouse racks or small parts, 1D barcodes like CODE128 are often easier for standard laser scanners to read at a distance compared to 2D QR codes.

Yes, our generator automatically optimizes between the different character sets to produce the most compact barcode possible for your specific data string.