gentlesource

<p>This plugin creates a short URL from the blog post permalink and stores it<br />
in the database. The URL is displayed below the blog post along with a link<br />
to twitter that passes the short URL on.</p>
<p>You can use all short URL services that offer an API. Here are a few:</p>
<ul>
<li>http://melt.li/</li>
<li>http://lin.io/</li>
<li>http://unrelo.com/</li>
<li>http://bit.ly/</li>
<li>http://u.nu/</li>
<li>http://tinyurl.com/</li>
</ul>


GentleSource Short URL

Automatically shortens the blog post URL.

Egoitz Gonzalez

<p>Polr is a quick, modern, and open-source link shortener. This plugin allows you to use Polr service in WordPress.<br />
Polr software is a good way to shorten the long urls. Now you can use it very fast inside your WordPress for your posts.</p>
<h4>Plugin Features</h4>
<ul>
<li>Shorten url of posts.</li>
<li>Github: <a href="https://github.com/aldakur/wp-polr" rel="nofollow ugc">Polr WordPress Plugin</a></li>
</ul>


Polr WordPress Plugin

Polr is a quick, modern, and open-source link shortener. This plugin allows you to use Polr service in Wordpress.

GentleSource Short URL vs Polr WordPress Plugin