yannishimself

QR Code Generator creates scannable QR codes for your WordPress content. Each post, page, or WooCommerce product gets a compact short URL (<code>/go/{base36}</code>) that 301-redirects to the original permalink.
Key Features:
<ul>
<li>Pure PHP QR code engine — no external APIs, no JavaScript rendering</li>
<li>Short URLs via <code>/go/{base36}</code> with permanent 301 redirects</li>
<li>Works with posts, pages, and WooCommerce products</li>
<li>Customizable pixel size, quiet zone, and colours</li>
<li>One-click generate, download, and copy from the editor sidebar</li>
<li>Lightweight — only requires the PHP GD extension</li>
<li>ISO/IEC 18004 compliant QR encoding</li>
</ul>
How It Works:
<ol>
<li>Edit any post, page, or product</li>
<li>Find the “QR Code” meta box in the sidebar</li>
<li>Click “Generate QR Code”</li>
<li>Download the PNG or copy the short URL</li>
</ol>

FARM QR Code Generator

Generate scannable QR codes with short, branded redirects for any post, page, or WooCommerce product. Pure PHP, no APIs.

Thorsten Frommen

As of WordPress 4.4, the Get Shortlink button is hidden by default. This plugin brings it back. Yay.
Please note that the button does not exist at all in a Block Editor context. It will only show up when using the Classic Editor, for example, when editing a single attachment.

Bring Back the Get Shortlink Button

This plugin brings back the Get Shortlink button, which is hidden by default since WordPress 4.4.

FARM QR Code Generator vs Bring Back the Get Shortlink Button