Are QR code generators safe?

[blockquote]Winston Cole said:

Are QR code generators safe?

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Looks like you do not use this modern qr code generator https://link-to-qr.com/ . It has a lot of benifits by the way. I have been using it for a year or so and should say it works pretty well for my business. Please mind that your professional community should always take all the information they need about you, your skills, and your unique experience. Adding a QR code to your business card will make your networking as efficient and convenient as possible.

I think the main thing you need is open source software for creating the QR codes themselves (can do a quick Google search: e.g. http://phpqrcode.sourceforge.net/). From there you need to figure out a strategy for what features you are going to offer people. For example:

What types of codes you can create (e.g. SMS, URL, Address book)
What output you are going to provide (e.g. PNG, JPEG)
What types of codes you can create (QR, micro QR, Datamatrix)
Error correction level (e.g. 0-35%)