Barcode Generator

Barcode Generator encodes the entered content as a CODE128 linear barcode and renders it as scalable vector graphics. CODE128 supports digits, letters, and many symbols, making it suitable for internal labels and identifiers.

Browser-first workflowProcessing details below

What it does

Use it for a label or prototype when the receiving system expects CODE128. A barcode is only a representation of an identifier: it does not register a retail product or connect the value to a database.

The SVG download stays sharp when resized, but bars must remain vertical, high-contrast, and wide enough for the intended scanner.

How to use this tool

  1. Enter the identifier: Type the exact letters, numbers, or supported symbols required by the receiving system.
  2. Generate: Select Generate Barcode and inspect the printed text below the bars.
  3. Scan-test: Test the preview and final label with the actual scanner or app.
  4. Download SVG: Save the vector file and resize proportionally without cropping its side margins.

Input and output

Input

  • Barcode content such as PROD-102948

Output

  • CODE128 barcode preview with human-readable text
  • Downloadable SVG

How it works

CODE128 symbols

Characters are represented by varying bar and space widths, with start, checksum, and stop patterns.

Identifier, not database

Scanning returns the encoded string. Meaning, price, and inventory data must come from another system.

Practical example

Scenario
Create an internal warehouse label.
Action
Enter the value, generate it, and download the SVG.
Input
PROD-102948
Expected result
A CODE128 scanner returns PROD-102948; no product record is created automatically.

Limitations

  • This interface generates CODE128, not EAN-13, UPC-A, ISBN, QR, or other symbologies.
  • It does not allocate GS1 company prefixes or validate retail identifiers.
  • Very long values produce wide barcodes that may not fit small labels.
  • Low-resolution printing, horizontal scaling, insufficient margins, or poor contrast can cause scan failures.

Frequently Asked Questions

Can I use this barcode at retail checkout?

Only if the retailer explicitly accepts CODE128 and your identifier is registered in its system. Consumer retail commonly uses GS1 UPC/EAN formats.

Why download SVG?

SVG is vector-based and stays crisp across sensible print sizes.

Does the barcode contain a price?

It contains only the entered string; a scanner system may use that string to look up a price.

Can it encode spaces?

CODE128 can encode many ASCII characters, but the receiving scanner and software must accept them.