Excellent and super fast. The tool i used previously took several seconds to generate the code. This one does it immediately when i hit the button.

It does what it says without any unnecessary extras. Unlike most other add-ons, it doesn't require any unnecessary permissions.
The only minor issue is that the black icon on my dark-themed toolbar is barely visible. It would be perfect if you could add a light background.

I don't understand the bad reviews: the extension works fine and doesn't add tracking junk to the qr codes it generate.

Funciona, pero le falta la opción que uno mismo pueda escribir su propia URL sin salirse de la página.

This does NOT generate QR codes in your context menu. (In other words, it does NOT allow you to select what URL you're displaying to yourself.)
So the FUNDAMENTAL USE CASE of "I am reading something but need to poop" is not addressed. You can NOT quickly right-click the thing you're looking at and bring it to your phone. You can ONLY see the base website that rendered it to begin with.
E.g. you can link back to google.com, but you can't push search results page from your desktop to your phone. The QR code will just be to google.com

not open source, not private, better use offline generator... thx to qr for the reply. just by having code than can be extracted, does not make it open source. Put it to git or somewhere else and make a link to the repo like others do, so source can be reviewed and trusted.

Works perfectly!
No complaints from me. :)