1. Select a symbology
Use EAN-13 or UPC-A for compatible GTIN formats, Code 128 or Code 39 for internal identifiers, ITF-14 for compatible outer-carton GTIN-14 uses, and GS1-128 for structured supply-chain data with Application Identifiers.
BARCODEON · FIELDENCE
A practical workflow from input and validation to printing and scanning.
Use EAN-13 or UPC-A for compatible GTIN formats, Code 128 or Code 39 for internal identifiers, ITF-14 for compatible outer-carton GTIN-14 uses, and GS1-128 for structured supply-chain data with Application Identifiers.
Check the supported character set, data length and check digit. In GS1-128, Application Identifiers specify the meaning of each field. In bulk mode, import CSV/TSV/XLSX and review every mapped column and invalid row before export.
Download an SVG for scalable graphics, PNG for raster images, ZIP for multiple symbols or an A4 PDF for a starting label template. Do not crop quiet zones or stretch the bars. Print one label and scan it using the intended hardware.
Generation is designed to happen locally in the browser. Review browser history and privacy information when entering commercially sensitive values. Do not upload spreadsheets containing personal information unless you have checked your local environment and policy requirements.