GS1-compliant barcodes, rendered pixel-perfect at 300 DPI.
Built around the GS1 Application Identifier catalog. Check digits, FNC1 separators, correct x-dimension — all handled before you print.
Every GS1-128 and GS1 DataMatrix barcode we render is parsed against the full ~200-entry Application Identifier catalog. If you type an invalid AI, an unpadded serial, or the wrong check digit, we tell you — in the editor, before you print a thousand wrong labels.
13 supported symbologies
Linear: Code 128, Code 39, Code 93, EAN-13, EAN-8, UPC-A, UPC-E, ITF-14, GS1-128. 2D: QR Code, Data Matrix, PDF417, GS1 DataMatrix. All rendered server-side via tc-lib-barcode for pixel-exact output on thermal and laser printers.
Application Identifier catalog
Full GS1 AI catalog built in — (01) GTIN, (10) Batch, (17) Expiry, (21) Serial, (30) Count, (37) Units, and ~200 more. Each AI has a defined format (numeric / alphanumeric, fixed / variable length, FNC1 termination). We validate as you type and insert the right FNC1 separators automatically.
X-dimension and thermal safe area
Thermal printers fail when the bar x-dimension is smaller than the printhead can resolve. We enforce a minimum x-dim per symbology (default 0.33 mm for GS1-128, adjustable) and warn if your label is too small to hold a legal barcode at legible density. The safe-area guide keeps barcodes away from the label edges where they smear.
What we do not support
GS1-DataBar (Omni, Stacked, Limited, Expanded) is intentionally out of scope. DataBar is primarily used on very small produce and pharmacy stickers — markets we do not serve. If your use case needs DataBar, GS1-128 at a smaller x-dim often fits; otherwise talk to us.
Variable data from CSV
Drop a spreadsheet. Every row becomes a label. Formulas, tokens, batch PDF — thousands of labels in one export.
Learn moreAny printer, any OS
Zebra, TSC, Godex, SATO, Brother QL, inkjet, laser — if your OS drives it, we print to it.
Learn moreRuns in any browser
No install, no license dongle. Chrome, Edge, Safari, Firefox on Windows, Mac, Linux, iPad, Chromebook.
Learn moreStop fighting desktop software. Open a tab.
Sign up in thirty seconds. We seed a demo design and a sample dataset so you can print your first test label before you've finished your coffee.
Create your workspace