Стефан Јоцић

This plugin allows you to create qr code either from current post/page url or custom provided content.

QR Code Generator by kodionica

This plugin creates qr code from added content.

Md Rashed Hossain

If you are a blogger or writer and using WordPress as your website CMS, then QR Code Generator for Post plugin is for you. It will automaticly generate qr code for every post & the qr code will show on the post.
On this plugin I was used a API for generate QR Code image, it’s didn’t collect user data. 
API Full Document : http://goqr.me/api/doc/ 
Imprint : http://goqr.me/de/rechtliches/impressum.html 
Privacy Policy : http://goqr.me/de/rechtliches/datenschutz-goqrme.html
Features:
<ul>
<li>QR Code Generator</li>
<li>Easy to Configure</li>
<li>Easy to use</li>
<li>Compitable with Latest version</li>
</ul>
N.B: If you want more options in this simpel plugin, please <a href="https://wprashed.com" title="Rashed - WordPress Developer" rel="nofollow ugc">contact with me</a>

QR Code Generator for Post

Automaticly generate QR code for every post.

QR Code Generator by kodionica vs QR Code Generator for Post