Eternal qr code (link)?

Question

Marketing

You need an eternal qr-code (link). That is, in order to point the camera at the code, it is read and redirected to the browser. If you generate an online promo code generator on some site, will it be eternal? I just saw free and paid services for creating qr codes. Is there any difference? Can you recommend any trusted services?

Answer 1

A QR code is just a picture.
Once created, it does not depend on third-party services.
If the link is direct, there will be no problems.