ShadowToolkit

Code128 Barcode Generator

Code128 Barcode Generator running client-side on your device.

100% In-Browser
100% In-Browser PrivacyLocal

Your files and data are processed locally and never leave your device.

Barcode Standard / Symbology100% compliant GS1 & ISO standards

Code 128 (Universal / Shipping)

15 characters

Supports all 128 ASCII characters (Letters, numbers, symbols).

Dimensions & Geometry
Bar Width Scale2x
Barcode Height100px
Quiet Zone (Margin)10px
Live Scannable Barcode Preview
About Code 128 (Universal / Shipping)

Logistics & General standard. Rendered client-side using strict GS1 barcode specification tolerances to ensure 100% scan pass rate with hardware laser scanners and smartphone cameras.

What is Code128 Barcode Generator?

Code 128 Barcode Generator produces high-density linear barcodes capable of encoding all 128 standard ASCII characters (letters, numbers, symbols, and punctuation). It is the premier international barcode symbology for logistics, shipping containers, and asset tracking.

Zero-Server Client-Side Guarantee

Unlike legacy online utilities that upload sensitive media and documents to remote cloud storage, Shadow Toolkit executes this entire operation directly within your browser's local runtime. Your raw data never crosses the network.

Key Capabilities

  • Encodes all 128 ASCII characters (uppercase, lowercase, numbers, symbols)
  • Automatic switching between Code 128 Character Sets (A, B, and C) for optimal compact bar density
  • Automatic Modulo 103 checksum calculation
  • Export in high-resolution vector SVG and print-ready PNG formats
  • 100% private in-browser generation with zero server uploads

Common Use Cases

1Generating shipping label barcodes (GS1-128 / SSCC) for freight and logistics tracking
2Creating warehouse inventory bin labels, serial numbers, and equipment asset tags
3Printing employee ID badge barcodes and membership verification passes
4Connecting offline physical marketing materials, product labels, and signs with instant digital experiences

How to use Code128 Barcode Generator

01

Enter Text or Numbers

Type any alphanumeric text, SKU, or serial number.

02

Configure Layout

Adjust bar height, width scale, and quiet zone padding.

03

Download Barcode

Export as vector SVG or PNG.

04

Print or Embed Asset

Download the scannable barcode or QR code as crisp vector SVG or high-resolution PNG ready for physical printing or digital display.

Frequently Asked Questions

Yes! Unlike older Code 39 or UPC barcodes, Code 128 can encode all standard ASCII characters including lowercase letters (a-z), special symbols (@, #, $, %), and numbers.

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