Free Code 128 Barcode Generator

Create high-density alphanumeric industrial barcodes for logistics, manufacturing tracking, and shipping labels instantly. Download scalable SVG vector artwork or 300 DPI high-quality PNGs.

Code 128 barcode generation workflow

High-density alphanumeric format used for shipping and logistics.

Provide alphanumeric or digit formats based on standards above.

Prints literal values at base of barcode lines

The Alphanumeric logistics gold standard: Code 128 Explained

Code 128 is wide-spread industrial barcode standard formalized by the computer logistics sector in 1981. It is highly valued for its extreme text density capabilities, enabling packing alphanumeric details into compact dimensions:

  • Character Sets A, B, and C: Seamlessly shifts between control characters, uppercase/lowercase letters, and dense pairs of numeric digits to optimize space.
  • Bi-directional Scanning: Can be scanned correctly backward or forward, maximizing processing speeds on sorting belts.
  • Integrated Validation Cheeksum: Utilizes automated Modulo 103 checksum arithmetic to ensure scannability without error.

Frequently Asked Questions

Code 128 is an extremely powerful alphanumeric symbology that supports encoding the entire standard character set of 128 ASCII characters. This includes all numbers (0-9), upper and lowercase letters (a-z, A-Z), punctuation marks, and control codes.

Yes! Code 128 is the primary standard barcode standard chosen for general packaging, shipping container crates, GS1-128 routing labels, and internal asset tracking indices worldwide due to its extreme spacing efficiency.

Enter alphanumeric text in the value input above, then configure the bars thickness and heights to match your labeling templates. Once rendered in the preview field, click on designated "Export SVG" to save vectors.

No. Unlike EAN-13 or UPC-A standards that restrict values strictly to 12 or 11 fixed digits, Code 128 supports variable characters and counts. It optimizes internal barcode density algorithms dynamically based on data length.

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