Marco

This plugin will display a QR code in your sidebar which you can easily scan with your handphone or tablet and read later on the way home, to office or to school.

QR code generator

This plugin will display a QR code of the actually loaded page in your sidebar.

The Weeky

Barcode Generator is a WordPress Plugin which will allow you to Generate your Barcodes in the Admin Panel itself under the Tools Tab.
*This Plugin provides you with 3 more options of Size, Orientation and Print option.
<pre><code>1. Size option will help you decide the size of the Barcode.

2. Orientation option will decide whether the Barcode will be Horizontal or Vertical.

3. Print option will print the normal text under the Barcode.
</code></pre>
*This Plugin automatically saves your Barcodes in images directory.

Barcode Generator

Barcode Generator is a Wordpress Plugin which will allow you to Generate your Barcodes in the Admin Panel itself under the Tools Tab.

QR code generator vs Barcode Generator