Turn a 5,000-row spreadsheet into print-ready labels in minutes
For e-commerce sellers, warehouse teams, and packaging ops who need hundreds or thousands of barcodes — import once, validate every row, and export in one click. Zebralines processes everything locally in your browser, so there is no catalog upload and no waiting on a server queue.
Bulk barcode generation is how teams move from a raw inventory spreadsheet to a print-ready label run without desktop software, catalog uploads, or an IT ticket. You drop a CSV or Excel file into Zebralines, map your columns once, and every row is validated, previewed, and exported in your browser. Whether you are prepping 200 SKUs for a product launch or 5,000 codes for a warehouse relabel, the workflow stays the same: import, validate, export. Your catalog data never leaves your device — that is not a marketing claim, it is how the product is built.
The old way costs hours — and one bad row ruins the batch
The old way
- You end up building barcodes one SKU at a time in desktop label software or clunky online tools that were never designed for catalog-scale work.
- Most alternatives ask you to upload your full product spreadsheet to a third-party server — a non-starter when your catalog is confidential or your IT policy forbids cloud uploads.
- A single wrong check digit often goes unnoticed until after you have printed hundreds of labels, forcing a costly reprint and a delayed shipment.
- Reprint runs eat budget and time: every bad batch means pulling stock, re-labeling cartons, and explaining delays to retailers or fulfillment partners.
With Zebralines
Zebralines bulk generation fixes that — locally, row by row, with validation before you export a single label.
- Local browser processing
- Per-row validation before export
- Print-ready formats in one run
Upload 5,000 rows in seconds with CSV or Excel import
Drop a .csv or .xlsx file and Zebralines parses it entirely in your browser. Drag column headers onto barcode value, label text, quantity, and filename slots — no rigid template required. The importer auto-detects symbology from your data where possible, so mixed-format catalogs do not need pre-cleaning. Starter plans handle up to 500 rows per import; Professional up to 5,000; Studio supports unlimited rows for large seasonal runs.
Catch invalid GTINs before you export a single label
Every row is validated before export: GS1 check digits are computed and verified, GTIN lengths are enforced, and GS1-128 Application Identifier structure is checked on supported plans. Invalid rows highlight inline with the exact reason — wrong length, bad check digit, missing quiet zone data — so you fix the spreadsheet in place instead of discovering errors at the printer. No more reprinting an entire batch because of one bad SKU on row 247.
Export PNG, SVG, PDF roll, ZIP bundles, or print from the browser
When your data is clean, export in the format your workflow needs. Crisp PNGs up to 600 DPI for commercial print, scalable SVGs for design teams, PDF roll files for thermal and roll printers, and streamed ZIP bundles for warehouse handoff. Professional plans add browser print for validated bulk batches. The entire export pipeline runs client-side — assembled label by label in your browser tab.
Three steps. No jargon.
Drop your spreadsheet
Import a CSV or Excel file with your SKU list. Starter supports up to 500 rows; Professional up to 5,000; Studio plans are unlimited. Files are parsed locally — nothing is uploaded.
Map columns and preview
Assign barcode, label text, and quantity columns with drag-and-drop. Page through a live batch preview and confirm every label looks right before you commit to export.
Export or print
Download PNG, SVG, PDF, or a ZIP bundle in one click. Send labels straight to your printer on supported plans, or hand the ZIP to your commercial print vendor.
Built for teams like yours
E-commerce seller
Export your Amazon or Shopify inventory to CSV and generate listing barcodes for 5,000+ SKUs in one afternoon. Map your ASIN or SKU column once and export a ZIP your fulfillment center can print immediately.
Warehouse manager
Pull a receiving list from your WMS and print pallet and shelf labels before inbound trucks arrive. Column mapping remembers your layout so weekly receiving runs take minutes, not hours.
Packaging team
Produce pre-launch product labels across an entire catalog before store opening day. Preview every page, fix invalid GTINs inline, and export print-ready PDF rolls or ZIP bundles for your packaging line.
Works well with this
Common questions
CSV (.csv) and Excel (.xlsx). Zebralines parses files entirely in your browser — nothing is uploaded to a server.
Turn a 5,000-row spreadsheet into print-ready labels in minutes
No catalog upload. Your data stays on your device.