Barcode production guide

How do I create sequential Code 128 barcodes?

Create sequential Code 128 barcodes with custom prefixes, start numbers and zero padding, then preview, print, or download the full label range as a ZIP.

Open Batch mode, expand Sequential generator, enter a prefix, start number, count and padding length, then apply the range. You can preview, print or export the result as a ZIP.

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Create the barcode in your browser

Use the same deterministic barcode engine described in this guide. Standard generation is free.

Barcode production workspace

Deterministic rendering · live preview · print-ready exports

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Barcode settings

SymbologyBarcode value

Size

Width 1-30Height 1-200DPI 72-800Margin 1-20

Human-readable text

Hide text

Text positionText sizeText gapText alignmentFontText color

Advanced settings

Output

RotationFg colorBg color

Text above barcode

Text sizeText alignmentText colorFontPosition 0

UpDown

Text below barcode

Text sizeText alignmentText colorFontPosition 0

UpDown

Live preview

Rendered in browser

Current symbology: code128

Use it for single generation, batch generation and reusable templates. Export as JPEG, PNG or high-resolution SVG when you are ready.

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