José María Ferri Azorín

This plugin is based on <a href="https://wordpress.org/plugins/tiny-url/" rel="ugc">Prasanna SP Tiny URL</a> plugin and uses some of its code.
This plugin shows a short URL for each of your blog posts after post content (in FrontEnd). Short URLs are great for sharing your posts on micro-blogging sites like twitter, identi.ca etc., This plugin sends current post or page URL to <a href="https://v.gd" rel="nofollow ugc">v.gd</a> or <a href="https://tinyurl.com" rel="nofollow ugc">TinyURL.com</a> and gets a short URL for the same. Then it shows that Short URL after post content. You can select which users can see short URL textbox: “All users”, “Regitered users” or “Registered users that can edit the post/page”. User can just click on the box to select URL, or click on a Copy button to Copy the Short URL to clipboard. You can also show Short URLs for pages by selecting Show Short URL FE on pages option in plugin settings page.
Note: Please read V.gd <a href="https://v.gd/terms.php" rel="nofollow ugc">terms of use</a> before activating the plugin. You must abide by them after activating the plugin. 
Note: Please read TinyURL’s <a href="https://tinyurl.com/#terms" rel="nofollow ugc">terms of use</a> before activating the plugin. You must abide by them after activating the plugin. TinyURL is a trademark of TinyURL, LLC
<h4>How to style the output?</h4>
You can add a class for textbox and a class for button on Short URL FE plugin options page.
The output of this plugin is wrapped in a <code></code> tag with class <code>short-url-fe</code>. Use this class and, optionally, your classes to style them. 
Example,
<pre><code>/* this change background color for area where plugin is shown */
.short-url-fe {
 background-color: #ccc;
 padding: 4px;
 border-radius: 4px;
}
/* Assuming you added a class 'mytextbox' for textbox, this adjusts textbox style */
.short-url-fe .mytextbox {
 width: min(20rem, 70%);
 box-shadow: 2px 2px 4px 1px #ccc inset;
 padding: .5rem 4px;
}
/* and assuming you added a class 'mycopybutton' for button, this adjusts button style */
.short-url-fe .mycopybutton {
 background-color: lightblue;
 color: darkblue;
}
</code></pre>

Short URL FE

Show a Short URL for all of your blog posts and optionally for pages

Prasanna SP

Short Links are easy to remember and share. If you are using WordPress pretty permalinks, your post URLs may be too long to share it on microblogging sites like twitter and identi.ca. This plugin shows Short Link a.k.a ugly default URLs after your post or page content. Short Links will be like http://example.com/?p=123. You can just click on it to select the Short Link. Copy it and you’re ready to share your page on the web! The default title for Short Links is “Short Link:”. You can change it for posts and pages in plugin options page.
Demo: See demo of this plugin here – <a href="http://demo.prasannasp.net/short-link/" rel="nofollow ugc">Short Link WordPress plugin demo</a>
Support: Please post your support questions at <a href="http://forum.prasannasp.net/forum/plugin-support/short-link/" rel="nofollow ugc">Short Link plugin support forum</a>
Visit <a href="http://www.prasannasp.net/wordpress-plugins/" rel="nofollow ugc">this page</a> for more WordPress Plugins from the developer.
<h4>How to style the output?</h4>
The output of this plugin is wrapped in <code></code> tag. Use <code>.short-link</code> CSS class to style it 
Example,
<pre><code>.short-link {
color: #FF0000;
}
</code></pre>

Short Link

Show Short Link for all of your blog posts and optionally for pages with this plugin

Short URL FE vs Short Link