Data rules
Any printable ASCII, up to 1,000 characters
- Length: 1–1000 characters
- Character set: alphanumeric
- Check digit: not used
- Quiet zone: 0 modules
2D codes
Aztec Code
Aztec codes need no quiet zone, which makes them the standard for rail and airline tickets printed edge to edge.
Preview
Enter valid data to see the barcode.
Encoding happens entirely in your browser. This tool encodes numbers you already own — it does not issue or register GS1 company prefixes.
Printing notes
- The central bullseye finder pattern removes the need for a surrounding quiet zone.
- Error correction defaults to 23% of symbol capacity and is configurable in the specification.
Workflow links
Related barcode formats
What is Aztec Code?
Aztec Code is a 2D matrix symbology built outward from a bullseye finder in the centre. It needs no quiet zone, so it fits into tighter layouts than Data Matrix or QR.
It is the standard for rail and air travel tickets, where it must scan reliably from a phone screen at a gate reader.
Frequently asked questions
Is this Aztec Code generator free to use?
Yes. The Aztec Code generator is free, has no signup and adds no watermark. The symbol is encoded in your browser, so the data you type is never uploaded to a server.
What file format should I download for printing Aztec Code?
Download SVG for anything that will be printed. SVG is vector, so bar widths and the quiet zone stay exact at any size. PNG is fine for screens and slide decks, but never scale a PNG barcode up — enlarging it blurs the bar edges and scanners start failing.
Why does Aztec Code not need a quiet zone?
Its central bullseye finder pattern lets the decoder locate the symbol from the inside out, so surrounding whitespace is not required to isolate it.
Standards & references
This page follows the published specifications. The bodies that own them: