How to create a QR code for free? If you want to create your own custom QR code there are several free online tools that let you generate it. Among the various online QR code generators, it is worth ...

Making your own QR codes is easy if you have the right app. Embed them with text, links, and even passwords. Use one of these to get started.

QR codes are just one of several kinds of 2-D bar code technology; Microsoft, for example, offers its own 2-D bar code technology, Microsoft Tag, which requires a mobile app to be read.

QR codes are fast and can make it easier for malicious coders to access your website fast, just like everyone else. I suggest a VPN for your smartphone and also ensure you have all the latest updates.

Rather than have a guest select your Wi-Fi network and then enter a fiddly password, just make them a QR code their iPhone can read. Here's how to do it.