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Barcode Generator

Generate Code 128B barcodes as SVG images. Supports all printable ASCII characters with configurable bar height, module width, colors, and text display. Download or copy SVG output. Runs entirely in your browser — your data never leaves your machine.

barcode code128 svg generator scanner label

Published May 30, 2026

All interactive tools run entirely in your browser. Your data never leaves your device.

How It Works

Enter text to encode as a Code 128B barcode. The generator creates an SVG image with proper start/stop patterns, checksum calculation, and quiet zones. All printable ASCII characters (32-126) are supported.

Features

  • Code 128B encoding: industry-standard barcode symbology
  • SVG output: scalable vector graphics, no pixelation at any size
  • Customizable appearance: bar height, module width, colors
  • Text display: optional human-readable text below barcode
  • Download SVG: save the barcode as an SVG file
  • Copy SVG: copy the SVG markup to clipboard
  • Checksum: automatic modulo-103 check digit
  • 5 examples: common barcode use cases
  • Private: runs entirely in the browser — no data transmitted

Use Cases

  • Generate product labels and inventory tags
  • Create shipping and tracking barcodes
  • Print serial number barcodes
  • Generate scannable ID barcodes for internal systems
  • Create barcode images for documentation