Free tools

Free, and actually free.

No account, no watermark, no expiry, and nothing stops working later. Everything below runs in your browser — the design, the scan check and the file itself are produced on your own machine.

Every download is checked. Before a file is handed over, the finished artwork is rendered and read back by an independent scanner at four sizes, including a blurred small render standing in for a poor phone camera. If it does not decode, the download is refused rather than quietly handed to your printer.

What these tools cannot do

They produce static codes: the content is encoded into the pattern, so it works forever and needs nothing from us — but it can never be changed once printed, and it cannot report a single scan. Editing a destination after printing, and seeing what happened, both need a dynamic code.