Code 128 is a high-density 1D barcode symbology used widely in shipping and inventory that encodes alphanumeric text and symbols.

Can Code 128 encode lowercase letters?

Yes. Code 128 supports both uppercase and lowercase letters, numbers, and standard ASCII punctuation.

Is Code 128 free to use commercially?

Yes. Code 128 is in the public domain and does not require licensing fees.

Code 128 Generator

Generate high-density alphanumeric Code 128 barcodes for logistics, inventory, and serial tracking.

TL;DR: Code 128 Generator is a free, browser-based tool that lets you generate high-density alphanumeric Code 128 barcodes for logistics, inventory, and serial tracking.

Code 128 Alphanumeric Barcode Creator

Enter alphanumeric characters, SKU codes, serial numbers, or shipping identifiers.

Bar Height:

Show human-readable text

About the Code 128 Generator

Code 128 Generator creates high-density alphanumeric linear barcodes capable of encoding all 128 ASCII characters (numbers, uppercase letters, lowercase letters, and punctuation) for shipping and asset tracking.

How to Use the Code 128 Generator

Enter your alphanumeric serial number, tracking code, or asset tag.
The tool auto-selects optimal Code 128 subsets (A, B, C) for maximum compactness.
Preview the crisp barcode render.
Download in PNG or SVG vector format.

Expert Tips for Code 128 Generator

Subset C for Pure Numbers: Encodes double-density pairs of digits (e.g. '123456') to produce ultra-compact shipping barcodes.
Supports Letters & Symbols: Perfect for encoding complex serial numbers with hyphens and alphanumeric characters.
Logistics Standard: The core symbology powering GS1-128 shipping container labels worldwide.

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100% Client-Side Privacy Guarantee

All processing runs locally inside your browser using JavaScript and HTML5 APIs. Your data, files, and inputs are never uploaded to any remote server. Complete privacy by design.

Frequently Asked Questions

: Code 128 is a high-density 1D barcode symbology used widely in shipping and inventory that encodes alphanumeric text and symbols.
: Yes. Code 128 supports both uppercase and lowercase letters, numbers, and standard ASCII punctuation.
: Yes. Code 128 is in the public domain and does not require licensing fees.

Cite This Tool

Referencing this tool in a paper, article, or bibliography? Copy a ready-made citation below.

NexLove.org. (2026). Code 128 Generator [Software]. https://nexlove.org/tools/code-128-generator.html

“Code 128 Generator.” NexLove.org, 2026, nexlove.org/tools/code-128-generator.html.

NexLove.org (2026) Code 128 Generator. Available at: https://nexlove.org/tools/code-128-generator.html (Accessed: 2026).

@misc{nexlove_code_128_generator,
  title = {Code 128 Generator},
  author = {{NexLove.org}},
  year = {2026},
  url = {https://nexlove.org/tools/code-128-generator.html}
}

Embed This Tool

Add the live Code 128 Generator tool to your own website with this snippet — it loads the real, working tool in an iframe, not a static screenshot.

<iframe src="https://nexlove.org/embed/code-128-generator.html" width="100%" height="600" style="border:1px solid #e2e8f0;border-radius:12px" title="Code 128 Generator — NexLove.org" loading="lazy"></iframe>

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