Tomek

How to use shortcode in your post or page?
[qrcode]
or
[qrcode url=”http://my-site.com” margin=”10″ size=”100″ before=”QR Code” after=”QR Code”]
CSS:
.qrcode { float: right; }

QR Code

It lets appear the QR-code of the given site in the slidebar

sunnyverma1984

QR stands for Quick Response Codes and was developed by Toyota subsidiary Denso-Wave in 1994 to help remove problems in tracking automotive parts. QR code are a type of two-dimensional barcode that can be read using SmartPhone and dedicated QR reading devices, that link directly to text, emails, websites, phone numbers and more.
Use this plugin to add QR code in wordpress post and sidebar widget. This plugin use <a href="http://davidshimjs.github.io/qrcodejs/" title="qrcodejs" rel="nofollow ugc">JavaScript library</a> by davidshimjs to generate QR code. You can add QR code in WP post using shortcode 
[jsqr msg=”your text for qr code” /].
Check our online <a href="http://99webtools.com/qrcode.php" title="QR code generator" rel="nofollow ugc">QR code generator</a>
<h4>Plugin Features</h4>
<ul>
<li>Easy installation and integration</li>
<li>No php GD required</li>
<li>No 3rd party API required</li>
<li>No server load to generate and display QR code</li>
<li>Customizable image size and ECC level</li>
<li>Cross Browser capability</li>
<li>Sidebar widget</li>
<li>Custom WordPress editor button to insert shortcode</li>
</ul>

QR Code vs Javascript QRcode Generator