florianluce

With Shortener URL Redirect, You don’t have to do anything! 
When you publish a new post, page or custom post type, a short url is generated. You can share it, and it will redirect the user to the long url page. It’s invisible to him! 
This plugin does not use any external service.
example: 
https://your-site.com/ab2CdF redirect to https://your-site.com/my-categorie/my-post-name
optimisation available:
<ul>
<li>Create a short URL for each new publication (post, custom post types, page)</li>
<li>Redirect short URL to long/default URL</li>
<li>Display the short link to copy on admin publication</li>
</ul>
Notes: 
This plugin is actually not tested with: 
* Multisite network 
* Translate plugins 
* Other plugins

Shortener URL Redirect

Generate short url for all posts, custom post types and pages to redirect your user to the long URL. No more long URLs share!

Artberri

Karmacracy is an easy way to know people sharing relevant content around your social networks, it’s a new generation URL shortener.
This wordpress plugin will allow you to generate and insert short URLs from this service onto a post or page, resumes your Karmacracy profile in a dashboard widget and allows you to share your published posts on Facebook or Twitter.
This plugin doesn’t automatically generate short links, but allows you to insert short links at will from the post editor.
FEATURES:
<ul>
<li>Panel for setting the Karmacracy configuration</li>
<li>Shortcode icon for easy insertion into a post or page</li>
<li>Dynamically generates and inserts links onto a post or page</li>
<li>Dashboard widget that resumes your Karmacracy profile</li>
<li>Option to share your posts on Twitter and Facebook when are published</li>
</ul>
Comments, questions, feature requests and bug reports are welcome: <a href="http://www.berriart.com/en/wp-karmacracy/" title="WP Karmacracy" rel="nofollow ugc">http://www.berriart.com/en/wp-karmacracy/</a>

WP Karmacracy

Allows you to insert Karmacracy links into posts or pages and share your posts on Facebook and Twitter.

Shortener URL Redirect vs WP Karmacracy