Code One generator

Code One — the first matrix 2D code, used on industrial parts and medicines.

Data

Text or a link, up to 500 characters.

Width, mm Check a code

Beta: the code follows the standard but hasn’t been verified by an independent reader — test it with your scanner.

PDF and print use the chosen width. Print at 100% scale, not “fit to page”.

How to print a code that scans

Print at 100% scale — the 100 mm ruler on the print sheet shows if the printer resized it.
The white margins are already in the file: don’t crop them or put text or a frame right next to the code.
Dark code on a light background. Test red ink, glossy film and clear labels with a proof first.
Don’t shrink a barcode too much: EAN-13 and UPC-A at standard size are about 37 mm (1.47 in) wide.
Before a print run, print one sheet and test it with the scanner people will actually use.
“Ready” on this site means an independent software reader decoded the code. It is not an ISO or GS1 certificate.

Our checker can’t read this code type yet: browser-based scanners don’t support it. Test it with a dedicated scanner. Other codes can be checked on the home page.

Your code

Enter data on the left and your code appears here.

Create codes from a spreadsheet

Paste a table — the first codes and a row-by-row report will appear here.

Code One generator

Code One from a spreadsheet

Unlock batches with your key