Free QR Code generators?

I am looking for a free QR code generator to link my wedding website and digital RSVPs but they all require subscriptions well over $100 and it just seems a little excessive.

My RSVP date is 1st March 2024 and I want to print my invites within in the week so I need something that will last.

Does anyone know of a QR code generator that either doesn't cost so much, is free and the QR code remains live or even something more effective?

Ultimately, if I have to use one of the ones I've found I will, but just searching for other possible options.