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Barcode Generator

Generate properly validated common linear barcodes. This does not register a GTIN.

This calculator runs in your browser. Nothing is sent to a server.

Payload

Digits for EAN-13/UPC-A. ASCII 32–126 for Code 128. Code 39 is A–Z, 0–9 and - . $ / + % space.

Symbology

Bar height mm

Module width mm

Human-readable captionHuman-readable caption

Checksum

Output

How it works

Processing stays in this browser tab. Source files are not uploaded. Export is a new copy; originals are not overwritten.