Brian Layman

<p>This plugin allows the creation and display of custom sidebars for any page (or post) on your site. On each page, you can choose which of your current theme’s sidebars will be replaced. The replacement works for all descendants of a replaced page.</p>
<p>In this fashion you can:<br />
1. Easily create a CMS like site with unique sidebars for every page, even if your theme doesn’t support it.<br />
2. Create a sidebar with a Cart widget that displays on store pages created by the WP-E-Commerce page, but not anywhere else on the site.<br />
3. Use parent pages to create themed areas of your site, without creating custom page templates.</p>
<p>This plugin is compatible with every theme and all widgets because it hijacks your theme’s sidebars instead of replacing them.</p>
<h3>Use</h3>
<ol>
<li>Edit a page or create and save one. It must at least have a title.</li>
<li>In the ?Custom Sidebar? section, check ?Activate a custom sidebar? and select the sidebar to replace.</li>
<li>On the Appearance->Widgets screen, place the widgets on the newly created sidebar that matches your post. </li>
</ol>
<p>That?s it. No code. No CSS changes. No custom templates.</p>
<p>This video describes the usage of the plugin:<br />
     <span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="640" height="360" src="https://www.youtube.com/embed/_U2XfrU7nZQ?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></span></p>


Per Page Sidebars

The Per Page Sidebars (PPS) plugin allows blog administrators to create a unique sidebar for each Page. No template editing is required.

<p>A plugin that enables you to have dedicated content and/or widget sidebar for each specific page or post. For example, on a featured blog post you may want to place additional contact while on a calendar page you might want to place a calender widget or some text events or both.</p>
<h3>Widget Support</h3>
<p>Widget support is enabled by default and you do not have to add any code. The only recommended change is that you go to your template’s functions.php file and remove any coding containing a function similar to the one below.</p>
<pre><code>if ( function_exists('register_sidebar') )
    register_sidebar();
</code></pre>
<p>To enable widgets on a page or post, go to the manage screen and click ‘Add Widgets!’ to add or ‘Remove Widgets’ to remove.</p>
<h3>Notes</h3>
<p>This plugin is ONLY for WordPress 2.5+. It will not work with lower versions and may in fact corrupt the data in older versions. Please stay up to date with both WordPress and this plugin.</p>
<p>When using this plugin instead of Page Sidebars, this plugin will overwrite any of the widget configurations previously used. Also, do NOT use this script with Page Sidebars as it will lead to compatibility issues. Using this plugin will overwrite your other widget sidebars defined in your template. Proceed with caution.</p>
<p>For an older version of this plugin for WordPress versions 2.3.3 or lower, check out Page Sidebars.</p>


Core Sidebars

A small but useful plugin to have unique sidebars for each page/post.

Per Page Sidebars vs Core Sidebars