Free Barcode Generator Online - Code 128, EAN-13, UPC-A, Code 39, ITF-14

Pick the format first, then type a value that satisfies that symbology. EAN and UPC expect numeric strings with valid lengths and check digits where applicable. Code 128 accepts flexible alphanumeric payloads, which is why it dominates internal shipping labels.

Merchants selling in the United States and Canada usually photograph UPC-A symbols. Brands exporting to the EU or many Asian markets often print EAN-13. This generator draws whichever symbol you select as long as the digits you enter meet the encoder rules.

Operations teams pair Code 128 with SSCC style strings or internal SKUs. ITF-14 remains common on corrugated cases when the data model expects fourteen digits. MSI still appears in older inventory stacks focused on pure numeric keys.

Wider bars and taller modules scan more reliably on cheap printers. Keep dark bars on light backgrounds for laser scanners and phone cameras. Toggle human readable text when pack out staff still verify digits by eye, or hide it when the label is tiny.

PNG suits slide decks, email, and quick proofs. SVG scales to large label templates without jagged edges. The print action opens a clean page with the vector centered for copy rooms.

JsBarcode runs locally after the page loads. Your product numbers and serials never leave the tab for encoding, which matters when prototypes use confidential codes.

Issuing official GS1 company prefixes, ISBN registrations, or centralized serial management still happens outside any free web form. Use this generator to produce artwork once you already own the numbers. For two dimensional codes such as QR or Data Matrix, use a dedicated QR tool.