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!

itscwf

FYI-GO URL Shortener automatically shortens URLs in your WordPress posts and pages using the FYI-GO API. Save time and keep your links clean and trackable.
<ul>
<li>Automatically shortens URLs in your content (inside anchor links with an href)</li>
<li>Bulk conversion tool for existing posts</li>
<li>Choose a default “Box” for organizing your short links</li>
<li>Easy API key setup from your FYI-GO account</li>
</ul>
<h3>External services</h3>
This plugin connects to the FYI-GO API service to create, manage, and retrieve shortened URLs.
The plugin sends the original URL to the FYI-GO API when a user creates or automatically generates a shortened link. If API credentials are configured, the plugin may also send the configured API key and secret to authenticate the request.
The external service is provided by FYI-GO: 
Terms of Service: https://website.fyi-go.com/terms 
Privacy Policy: https://website.fyi-go.com/privacy 
API documentation: https://api.fyi-go.com/info
<h3>License</h3>
This plugin is licensed under the GPLv2 or later.

FYI-GO URL Shortener

Plugin maintained by FYI-GO to shorten URLs in your WordPress posts and pages using the FYI-GO API. It is not a WordPress core product.

Shortener URL Redirect vs FYI-GO URL Shortener