Code 128 Generator
Code 128 encodes the full ASCII set in a compact symbol and is the workhorse for internal article numbers, shelf labels and shipping documents.
Which barcodes do you need?
Tell us what you do and we'll point you to the right barcode type and workflow.
Try it right here
Wygeneruj pojedynczy kod
Bezpośrednie wprowadzanie jednego kodu – podgląd na żywo, pobieranie PNG lub SVG. Wszystko lokalnie.
Dowolne znaki ASCII.
Podgląd
ART-4711-ACode 128 at a glance
- Encodes digits, upper and lower case letters and control characters.
- Three character sets (A, B, C); set C packs two digits per symbol character.
- Length is variable – the symbol simply grows with the data.
- GS1-128 is Code 128 with a defined GS1 data structure.
Create a Code 128 barcode
- Enter your article number or text.
- Check the preview; avoid very long strings so the symbol stays scannable.
- Download SVG or PNG.
Frequently asked questions
- Code 128 or Code 39?
- Code 128 is roughly 30% narrower for the same data and supports lower case. Code 39 only survives where legacy systems demand it.
- May I use Code 128 for retail products?
- Not at the checkout – retail POS requires EAN-13 or UPC-A. For internal logistics Code 128 is fine.
- How long may the content be?
- Technically unlimited, practically keep it under about 20 characters for reliable handheld scanning.
Standards and official sources
These links point to the official GS1 and ISO specifications this generator follows. They open in a new tab on the standards bodies' own websites.