Gregor Capuder

ProteusThemes

Primoz Cigler

<a href="https://codeship.com/projects/164619" rel="nofollow ugc"> </a>
Replace the theme default sidebars with your newly created sidebars.
This plugin was forked from the <a href="https://wordpress.org/plugins/custom-sidebars/" rel="ugc">Custom Sidebars plugin</a>, which we used for a few years, but their plugin development stalled, so we were forced to create this plugin. We really appreciate the work of developers of the original plugin!
This plugin allows you to create your own custom sidebars, configure them by adding widgets, and replace the default sidebars on posts or pages you want in just few clicks.
Here is the tl;dr list of the differences from original source:
<ul>
<li>Compatibility with the latest stable PHP version (namely PHP 7.0+).</li>
<li>Removed the “archive pages” functionality – replacing the custom sidebars on archive pages is not possible (e.g. on certain categories).</li>
<li>Open-sourced development on <a href="https://github.com/proteusthemes/custom-sidebars-by-proteusthemes" rel="nofollow ugc">GitHub</a>. Issue reports and pull requests welcome!</li>
<li>Covered with PHP unit tests.</li>
<li>Fixed couple of JavaScript errors.</li>
<li>Removed WP admin pointer.</li>
<li>Modern workflow with Grunt and Bower.</li>
<li>Removed heavy advertising.</li>
</ul>
<h3>Contact and Credits</h3>
This plugin is being developed by <a href="https://www.proteusthemes.com/" rel="nofollow ugc">ProtuesThemes</a>.
The original plugin: Custom sidebars is maintained and developed by <a href="http://premium.wpmudev.org" rel="nofollow ugc">WPMU DEV</a>. Original development completed by <a href="http://marquex.es/" rel="nofollow ugc">Javier Marquez</a>.

Custom Sidebars by ProteusThemes

Allows you to create custom sidebars. Replace sidebars for specific posts and pages.

Deepak Sharma

Multiple Sidebar Generator Plugin to easily create many custom sidebars. These sidebars can then select in the creation of a post / page / custom post type. We give an order, and select several at once.
Features:
<ul>
<li>Add Multi Widget Sidebar.</li>
<li>Select Different Sidebar in Page/ Post/Costom Posts</li>
<li>Display in Appearance Options.</li>
</ul>
<h4>Advanced Usage</h4>
If you want to assign custom sidebars to archive pages or replace multiple sidebars per page, this plugin likely won’t be the best solution. However it’s flexible enough to handle a wide range of page-based use cases. It can even be configured to work with Custom Post Types by adding a couple lines of code:
<pre><code>function myprefix_init() {
 add_post_type_support( '{{post_type}}', 'multiple-sidebar-generator' );
}
add_action( 'init', 'myprefix_init' );
</code></pre>

Multiple Sidebar Generator

Easily assign custom, widget-enabled sidebars to any page.

Custom Sidebars by ProteusThemes vs Multiple Sidebar Generator