Print stickers. Encode codes. Stay honest.
Barcode Ops is the Tools.Town cluster for inventory and packaging labels: prefix + random codes on A4 PDF sheets, single Code 128 downloads, GTIN check digits, and a QR label sheet when phone cameras beat 1D scanners.
Hero path: Barcode Label Sheet — prefix TT, qty 36, size 40×30 mm → one full A4. Prefer phone scan? Use QR Label Sheet with the same form.
Start here by job
| Job | Tool |
|---|---|
| Many stickers on A4 (1D) | Barcode Label Sheet |
| Many stickers on A4 (QR) | QR Label Sheet |
| CSV / existing SKU list | Bulk Barcode Generator |
| One Code 128 SVG/PNG | Barcode Generator |
| Amazon FNSKU bars | Amazon FNSKU Barcode Generator |
| EAN-13 / EAN-8 / UPC digits | EAN-13 · EAN-8 · UPC |
| Code 39–intent | Code 39 Barcode Generator |
| EAN / UPC check digit | GTIN Check Digit Calculator |
| Single URL QR | QR Code Generator |
Workflow
- Choose symbology — Code 128 / A4 bars for warehouse lasers; QR sheet for phone cameras; never confuse with Meesho packet IDs.
- Make unique payloads — Prefix + random (
TT+ 10 digits) or paste FNSKU / GTIN digits you already own. - Validate digits — For retail GTINs, run check digit before print.
- Print actual size — A4 PDF → print dialog 100% / Actual size, not Fit to page.
Guides & honesty
- Barcode label sheet guide
- Print size & quiet zone (also on /guides/)
- QR vs barcode
- Meesho packaging guide — compliance only
- Amazon FNSKU guide
- EAN-13 explained
We do not invent GS1 company prefixes, free EANs, or official Meesho / Amazon packet IDs. Paste codes you already own; we draw bars or QR.