itcoderr

This plugin gives you a way to choose what widgets display on each page/post of your website. The plugin’s custom sidebars provides a way, using that you can display custom widget configurations on any page, post, post type, or archive page.
Features
<ul>
<li>Unlimited custom widget configurations</li>
<li>Custom widget for individual post, page etc..</li>
<li>Sorting sidebar</li>
<li>Many more</li>
</ul>

Acquaintsoft sidebar generator

Create custom widget configurations for every page/post on your website.

g30rg3x

Did you ever want to:
<ul>
<li>Have i15d/i18n permalinks?</li>
<li>Use non-ASCII characters on permalinks?</li>
<li>Personalize more your current permalinks?</li>
</ul>
i15d WP is a plugin specifically designed to fulfill this purposes without having to struggle. 
You just need to activate this plugin and it will be good-to-go. 
No modification to the core neither template files will be needed.

Acquaintsoft sidebar generator vs i15d WP