Make a stacked barcode

The dense format used on boarding passes, tickets and the back of ID cards.

Text

Options

Columns

Data columns, 1 to 30. More columns, fewer rows.

1 to 30

Security level

Error correction, 0 to 8. Print uses more.

0 to 8

Scale

Pixels per module.

1 to 20

Row height ratio

Row height as a multiple of module width.

1 to 10

2 credits

Needs Text.

Doing this a lot?

Same tool, as an API.

This page calls exactly the same code you would from your own program — no daily cap, 2 credits per call. See the endpoint reference.