Atte Liimatainen

<p>Generates base64 encoded, downscaled and blurred versions of media library’s images, which can be used f.e. as a placeholder.</p>
<h3>Inspiration</h3>
<p>After Wolt showcased their <a href="https://blurha.sh/" rel="nofollow ugc">Blurhash</a> technique, I wanted to make something similar to WordPress. Instead of encoding images to base83 like the food delivery company does, I went with base64 so development experience was easier.</p>
<h3>How to start using the plugin</h3>
<ul>
<li>Install and activate this plugin in your environment
<ul>
<li>The plugin should generate blurs for each image on the activation.</li>
</ul>
</li>
<li>Check an image’s details in your media library. It should have listing of all generated blurs.</li>
<li>To get a blur to a template, use <code>get_post_meta()</code>. Check example theme in <a href="https://github.com/AttLii/image-blur" rel="nofollow ugc">plugin’s repository</a></li>
</ul>
<h3>Customization</h3>
<p>The plugin provides few filters, so developers can modify generated blur images to their needs. By default, generated images are 8 pixels wide and passed once through gaussian blur function, which will result in roughly 250-1000 characters long string. To change these, use following hooks:</p>
<pre><code>function modify_image_blur_width( int $width ): int {
  return 15;
}
add_filter("image-blur-modify-width", "modify_image_blur_width");

function modify_gaussian_blur_strength( int $strength ): int {
  return 10;
}
add_filter("image-blur-modify-gaussian-blur-strength", "modify_gaussian_blur_strength");
</code></pre>


Image Blur

Generates base64 encoded, downscaled and blurred versions of media library's images, which can be used f.e. as a placeholder.

Engagerizer

Tom Mack

<p><a href="https://wordpress.org/plugins/url-parameter-decoder" rel="ugc">URL Parameter Decoder</a> is a lightweight WordPress plugin that decodes URL parameters (both base64 and URL-encoded) and displays them on your posts / pages using simple shortcodes. Perfect for dynamic content that needs to be passed through URLs while maintaining clean, readable output.</p>
<h4>Key Features</h4>
<ul>
<li>Decodes both base64-encoded and URL-encoded parameters</li>
<li>Creates automatic shortcodes for each parameter you define</li>
<li>Provides fallback default values when parameters aren’t present</li>
<li>Selective activation on specific posts and pages only</li>
<li>Security features to prevent XSS and other injection attacks</li>
<li>Support for displaying both decoded and original parameter values</li>
</ul>
<h3>User Instructions</h3>
<p><strong>Basic Setup</strong></p>
<ol>
<li>Install and activate the plugin</li>
<li>Go to Tools <span aria-hidden="true" class="wp-exclude-emoji">→</span> URL Decoder in your WordPress admin</li>
<li>Add the parameters you want to decode (e.g., “first_name”, “email”, “message”)</li>
<li>Set optional default values for each parameter</li>
<li>Select which posts and pages should process these parameters</li>
<li>Save your settings</li>
</ol>
<p><strong>Using Shortcodes</strong></p>
<p>For each parameter you add (let’s say “first_name”), two shortcodes are automatically created:</p>
<ul>
<li><code>[decode_first_name]</code> – Displays the decoded value</li>
<li><code>[encoded_first_name]</code> – Displays the original encoded value</li>
</ul>
<p><strong>URL Construction Examples</strong></p>
<ul>
<li>Base64 encoded: <code>https://yoursite.com/page/?name=SGVsbG8gV29ybGQh</code></li>
<li>URL encoded: <code>https://yoursite.com/page/?name=Hello%20World</code></li>
<li>Multiple parameters: <code>https://yoursite.com/page/?name=John&email=john%40example.com</code></li>
</ul>
<h3>Use Cases for URL Parameter Decoder</h3>
<p><strong>Direct Mail QR Code Scan (Personalized Mail)</strong></p>
<p>Perfect for direct mail campaigns generated by services like <a href="https://engagerizer.com" rel="nofollow ugc">Engagerizer.com</a>:</p>
<ul>
<li><strong>Personalized Landing Pages</strong>: Create a QR code that contains the recipient’s name, account number, or other personal identifiers encoded in base64. When scanned, they land on a page that greets them by name without requiring login.</li>
<li><strong>Tracking Campaign Effectiveness</strong>: Include campaign-specific identifiers in the QR code to track which mailings generate the most engagement.</li>
<li><strong>Special Offers</strong>: Encode customer-specific discount codes or promotional offers that display automatically when they scan the QR code.</li>
<li><strong>Customer Onboarding</strong>: For welcome packages, encode customer information that pre-fills forms when they scan a QR code, reducing friction in the setup process.</li>
<li><strong>Prefill Forms</strong>: Prefill your recipient’s information into a subscription form or order form.</li>
</ul>
<p><strong>Zoom Video Conference Chat and other chat platforms</strong></p>
<p>Enhance virtual meeting experiences with encoded URL parameters:</p>
<ul>
<li><strong>Personalized Sales Pages</strong>: Create chat links with encoded participant information (first name, last name, avatar image, etc.) that automatically displays when they click the link.</li>
<li><strong>Custom Welcome Messages</strong>: Include URL-encoded welcome messages or instructions that display on your landing page.</li>
<li><strong>Role-Based Access</strong>: Encode participant roles or permissions that determine what content or features they can access during the meeting.</li>
</ul>
<p><strong>Additional Use Cases</strong></p>
<p><em>Event Marketing</em></p>
<ul>
<li>Generate unique QR codes for event tickets with encoded attendee information</li>
<li>Create personalized event agendas based on attendee preferences</li>
</ul>
<p><em>E-commerce</em></p>
<ul>
<li>Product recommendations based on encoded purchase history</li>
<li>Personalized landing pages from marketing emails with product details encoded in the URL</li>
</ul>
<p><em>Membership Sites</em></p>
<ul>
<li>Simplified login process using encoded member information from email links</li>
<li>Member-specific content that displays based on membership level encoded in URLs</li>
</ul>
<p><em>Educational Platforms</em></p>
<ul>
<li>Course-specific content that loads based on student information in the URL</li>
<li>Pre-filled assessment forms with student identifiers passed via encoded parameters</li>
</ul>
<p>These use cases leverage the plugin’s ability to securely pass and decode information through URLs, creating more personalized and streamlined user experiences without sacrificing security.</p>
<h3>Instructions – Engagerizer Users</h3>
<ul>
<li><strong>About <a href="https://engagerizer.com" rel="nofollow ugc">Engagerizer</a></strong>: Engagerizer is the best platform for creating personalized direct mail marketing including personalized QR codes and personalized maps with driving directions from the prospect’s address to the business.</li>
<li><strong>QR Code Variables</strong>: All standard and custom variables are available plus the personalized map image and other personalized images you created.</li>
</ul>
<h3>Instructions – ITS Users</h3>
<ul>
<li><strong>About ITS</strong>: <a href="https://join.insidethe.show/?utm_medium=affiliate&utm_source=84dc0824" rel="nofollow ugc">Inside The Show</a> is your secret superpower to captivate your virtual audiences. ITS will transform your live virtual sessions into impressive audience experiences.</li>
<li><strong>Bulk Chat Base64 encoded Variables</strong></li>
<li> = Full Name</li>
<li> = First Name</li>
<li> = Avatar image (Zoom avatar url)</li>
<li><strong>Static Variables</strong>: Add static variables to identify the secession / training name. For example, the training was called  ‘Explosive Sales With Email Marketing’. Your variable would be training=Explosive%20Sales%20With%20Email%20Marketing. I also use static variables for coupon codes and discount percentages. </li>
<li><strong>Displaying the Avatar Image</strong>: Using the shortcodes you can display your image with HTML: . You can also enter these shortcodes into any image display function in WordPress (please note – you will not see an image preview).</li>
</ul>
<h3>Troubleshooting</h3>
<ul>
<li><strong>Variables are not displaying on your post / page</strong></li>
<li>Ensure that you selected the WordPress post / page in the settings.</li>
<li>Ensure that you are using the correct short code – copy and paste it from the settings page.</li>
<li>Ensure that your URL is properly structured with the same variable names you have setup. </li>
<li>Use default text to aid in setting up your page. Save the page then reload, the default text should display if no variable data is present.</li>
</ul>
<h3>Support the Plugin</h3>
<p>If you find URL Parameter Decoder useful, please take a moment to <a href="https://wordpress.org/support/plugin/url-parameter-decoder/reviews/" rel="ugc">rate it and leave a review</a>. Your feedback helps improve the plugin and lets others know about its capabilities.</p>
<h4>Why Reviews Matter</h4>
<p>They help other WordPress users discover useful plugins<br />
They provide valuable feedback on what works and what could be improved<br />
They motivate continued development and support of the plugin</p>
<p>Thank you for using URL Parameter Decoder!</p>


URL Parameter Decoder


We used this plugin for our personalized direct mail campaign to decode the personalized QR codes. Easy to use.


Works Perfect

Decodes URL parameters (base64 & URL-encoded) and displays them on your pages using simple shortcodes. Perfect for dynamic content passed through URLs

Image Blur vs URL Parameter Decoder