Desktop · Code-128 · PDF

Generating serial numbers is a chore. This makes it a two-minute job.

Set a prefix, range, and label size. Serial Smith builds Code-128 barcodes and a print-ready PDF for your label printer. Pay once, download, keep it.

Buy and download

One-time $39 · Windows desktop app

Built for shops that print labels all day

Spreadsheets, Word mail-merge, and online barcode toys all break down when you need a clean sequence on actual stock.

Sequences, not one-offs

Prefix, suffix, start, end, increment, and zero-pad mask. Generate hundreds of serials in one pass.

Real Code-128 barcodes

Vector bars in the PDF — not a blurry screenshot. Human-readable text under the barcode is optional.

Millimetre-accurate layout

Label size, barcode size, page size, and margins in mm. Presets for 50×25, 100×50, A4, and Letter.

Preview before you print

See the sheet on screen, zoom it, then save a PDF for your label printer or desktop printer.

Runs on your computer

No account, no upload of your serial scheme to someone else’s server. Install and work offline.

Pay once

No subscription. Buy the app, download the installer, use it as long as you need.

One payment. Then you own the download.

No monthly fee. After checkout you get the Windows installer.

Serial Smith licence

$39 USD, once

  • Unlimited serial sequences on your machine
  • Code-128 barcodes and PDF export
  • Label and page sizes in millimetres
  • Lifetime of this major version
Pay and download

What you get

Checkout is Polar. After payment they email a receipt and the Windows installer is in your Polar customer portal. Keep that email if you switch PCs.

Questions

Short answers before you buy.

Is this a subscription?

No. One payment, then you download the software.

What barcode format is it?

Code-128, which is the usual choice for serial numbers on product and warehouse labels.

Will it work with my label printer?

It exports a PDF. If your printer can print a PDF at the page size you set (often matching the label stock), it will work. Set page size to the label size for roll printers.

Which operating systems?

Windows desktop. The download is an installer for this machine class.

How do I get the download after paying?

Polar sends a receipt. Open the customer portal from that email and download the installer. Check spam if nothing arrives.