Free Aztec Code Generator
Aztec is a square 2D code that scanners find from the bullseye in its center, so it needs no blank margin around it. Type any text, check that it scans and download it.
Any text up to 1,000 characters.
The blank margin around the code, in modules (the width of the narrowest bar or one cell). Aztec needs none.
Made in your browser; nothing you type is sent to QRdx. WebP and AVIF are encoded by QRdx's server when you pick them, and nothing is kept.
Where Aztec barcodes are used
Transport tickets, both printed at home and shown on phone screens: many European rail operators use it (the UIC 918-3 ticket standard specifies Aztec), and airlines use it on mobile boarding passes.
Because it needs no quiet zone, it fits on tickets and screens where space around the code is tight.
Do I need to register an Aztec code?
No. It holds whatever text you type. Ticketing standards define their own data inside; this generator encodes your text as given.
What Aztec can hold
What it takes
Any text up to 1,000 characters.
Example
QRdx Aztec sampleAny text, up to 1,000 characters here. Aztec codes range from 15 × 15 cells (compact) to 151 × 151, holding up to 3,832 digits, 3,067 letters or 1,914 bytes.
Error correction is built in, so a smudged or partly covered code can still be read.
Aztec barcode size
| Example as SVG, PDF or EPS | 19 × 19 mm |
|---|---|
| Cell | 0.706 mm |
| Quiet zone | None required all round; the generator starts with 2 |
- The vector downloads draw each cell 0.71 mm square: the sample text comes out 19 mm across with a 2-cell margin. Scale it to suit your ticket or screen.
- No quiet zone is required, but a little white space helps scanners on busy designs.
Aztec barcode API
The same barcode is an image URL, with no API key: put it in an img tag, a label template or a product feed. It checks the value the way this page does, and allows 300 requests a minute per IP address. The barcode API docs list every option.
SVG image
https://api.qrdx.dev/v1/barcode?format=aztec&data=QRdx%20Aztec%20samplePNG, 3 pixels per module
https://api.qrdx.dev/v1/barcode?format=aztec&data=QRdx%20Aztec%20sample&type=png&scale=3In a web page
<img src="https://api.qrdx.dev/v1/barcode?format=aztec&data=QRdx%20Aztec%20sample" alt="Aztec QRdx Aztec sample" />Aztec barcode FAQ
Aztec or QR code?
For links people scan with a phone camera, QR. Aztec is for ticketing and transport systems that ask for it.
Can phones read Aztec codes?
Many scanner apps and ticket gates can. Some built-in camera apps only open QR codes.
Other barcode types
All 11 barcode typesBarcodes are static: the data is in the bars, so they work offline and never expire. For a link people scan with a phone camera, use one of the QR code generators.