Barcode Generator

Generate Code 128 barcodes as SVG/PNG.

100% Client-Side · In-Memory Only

Interactive Tool Workspace

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How to Use Barcode Generator

  1. Type your text or serial number into the input field.
  2. The tool computes Code 128 (Subset B) character patterns and the modulo 103 checksum digit.
  3. Download your generated barcode as a crisp PNG.

Features & Guarantees

  • Generates standard Code 128 Subset B barcodes for inventory, logistics, and product tracking.
  • Calculates official checksums automatically.
  • Clean vector canvas rendering.

Frequently Asked Questions

Which characters can Code 128 Subset B encode?

Subset B encodes all standard ASCII characters from ASCII 32 to 127, including letters, numbers, punctuation, and symbols.