Ivan Storck

The <a href="http://www.sustainablewebsites.com" rel="nofollow ugc">Sustainable Websites</a> WordPress Subcategories Widget displays all subcategories on a WordPress category archive page.
The widget will not show un-necessarily on pages or posts.
This widget is a useful navigation feature that will help your web site visitors drill down into your category hierarchy to find the right category. It is completely style-able with CSS. It’s also good for search engine optimization (SEO) to help your site’s link structure be easily crawl-able.
It’s a simple widget that does exactly what it says! Drag to your sidebar to activate.
Plugin homepage: <a href="http://www.sustainablewebsites.com/wordpress-subcategories-widget" rel="nofollow ugc">WordPress Subcategories Widget</a>
If you have any suggestions please email wordpress (at) sustainablewebsites (dot) com

SustainableWebsites WordPress Subcategories Widget

This WordPress Subcategories Widget displays all subcategories on a WordPress category archive page.

Themeisle

Valerio Souza

This plugin will completely remove the ‘/category/’ from your permalinks ( e.g. <code>mydomain.com/category/my-category/</code> to <code>mydomain.com/my-category/</code> ).
No configuration is required
<h4>Features</h4>
<ol>
<li>Better and logical permalinks like <code>mydomain.com/my-category/</code> and <code>mydomain.com/my-category/my-post/</code>.</li>
<li>Simple plugin – No configuration is required.</li>
<li>No need to modify wordpress files.</li>
<li>Doesn’t require other plugins to work.</li>
<li>Compatible with sitemap plugins.</li>
<li>Compatible with WPML.</li>
<li>Works with multiple sub-categories.</li>
<li>Works with WordPress Multisite.</li>
<li>Redirects old category permalinks to the new ones (301 redirect, good for SEO).</li>
</ol>
<h4>Heads up:</h4>
Read the <a href="https://wordpress.org/plugins/remove-category-url/faq/" rel="ugc">FAQ</a> before use.
Want to help? Use the <a href="https://wordpress.org/support/plugin/remove-category-url" rel="ugc">support</a>

Remove Category URL

This plugin removes '/category' from your category permalinks. (e.g. /category/my-category/ to /my-category/)

SustainableWebsites WordPress Subcategories Widget vs Remove Category URL