Offline · Crypto payment

MakeacryptoQRcodewithoutsendinganythinganywhere

Most online QR generators are not really generators — they are forms. What you type goes to a server, the image comes back, and a privacy policy is the only thing standing between your data and whoever runs the machine.

1 — Which kind of code?

2 — What should it do?

Links & text

Contact

Messaging

Places & events

Payments

Crypto payment

A wallet address, encoded so nobody mistypes it.

3 — Design it

Presets

Colour

Code
Background

Body shape

Corner shape

Logo

Frame

Error correction

15% recoverable — the sensible default.

Fill in the fields and your code appears here.

Everything happens in this tab. Your text, your links and your logo are never uploaded.

Server-side against browser-side

A server-side generator has to receive your payload to draw the pattern. That is not a criticism of any particular service — it is what the architecture requires. It means what you typed exists, however briefly, on hardware you do not control.

A browser-based generator loads the encoder into the page and does the work with your own processor. What you type is read by the tab you already have open, turned into a matrix in memory, and handed back as a download. There is no endpoint it could be sent to.

For this type that distinction is not academic. The payload contains the wallet address funds are sent to — precisely the sort of string that should not be pasted into somebody else's form.

The ten-second proof

Load this page, turn off your Wi-Fi, and make a crypto QR code anyway. It works, because everything it needs is already in the tab.

No privacy policy can demonstrate that. It is the one claim in this whole category you can verify yourself without taking anybody's word for anything.

What the scan needs

The code encodes the coin's URI scheme followed by your wallet address, so a phone reads it instantly offline but needs a connection to open the destination.

Nothing about that involves us. There is no redirect through our domain, which is why the code has no dependency on this site continuing to exist.

Where this matters most

  • Wi-Fi passwords, which should not be typed into a third-party form under any circumstances.
  • Payment identifiers — a UPI ID or a wallet address, where a substituted character sends money to a stranger.
  • Staff and client contact details, which are somebody else's data and not yours to upload.
  • Anything made on a client's behalf, where sending it to a third party is a decision you are making for them.

If your organisation has a policy about where data may be processed, this is the version of the tool that satisfies it.

Questions people ask

No. The encoder runs in JavaScript inside your browser tab — what you type is turned into a pattern in memory and handed back as a download. There is no upload endpoint.

More about crypto payment codes

The full generator

Crypto payment QR code generator

Wallet addresses are exactly the kind of string humans get wrong. Encode it once, print it, and let the camera do the typing.