Sohaus

Sohaus Clean Emoji Slugs keeps WordPress permalinks clean when editors use emoji in post titles.
By default, WordPress may include emoji or encoded emoji characters in generated slugs. This plugin removes emoji, pictograms, dingbats, variation selectors and related characters from slugs while leaving the original title unchanged.
Example:
❤️ I love WordPress 🩸
Becomes:
i-love-wordpress
The plugin works automatically when a post, page or supported public post type is saved.
<h3>Features</h3>
<ul>
<li>Removes emoji from slugs.</li>
<li>Cleans already encoded emoji in existing slugs when a post is saved, but does not bulk-update old posts automatically.</li>
<li>Keeps emoji in post titles.</li>
<li>Works on save and update.</li>
<li>Supports posts and pages by default.</li>
<li>Does not add database tables.</li>
<li>Does not track users.</li>
<li>Does not send any data to external services.</li>
</ul>

Sohaus Clean Emoji Slugs

Removes emoji and special symbols from WordPress slugs while keeping them in post titles.

tuxlog

wp-monalisa is the plugin that smiles at you like monalisa does. place the smilies of your choice in posts, pages or comments.
There are a lot plugins for smiley support out there and some of them are really useful. 
Most of them don’t work out of the box and this is what wp-monalisa tries to achieve, giving you the ability to maintain your smilies and even turn them into img tags.
it’s easy and it smiles at you…what else do you want?
Features:
<ul>
<li>maintain your smilies in a separate directory</li>
<li>activate or deactivate smilies for posts or comments</li>
<li>replace smilies with img tags</li>
<li>extend or replace wordpress smiley replacement</li>
<li>while edit posts or pages, pops-up in a draggable meta-box</li>
<li>extends your comment form to give you visitors the freedom to smile 🙂</li>
<li>support for fckeditor (tested with v3.3.1)</li>
<li>fully integrated with BuddyPress, bbPress and wpForo</li>
</ul>
The video shows a short overview of what wp-monalisa can do for you. <iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/uHXlELn27ko?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
Credits: 
Thanks go to all who support this plugin, with hints and suggestions for improvment and specially to
<ul>
<li>Michal Maciejewski, polish translation</li>
<li>Denny from http://www.vau3.de for testing and giving input for the BuddyPress integration</li>
<li>FJ Bakry, Camisto (https://camisto.com) for indonesian translation</li>
</ul>

wp-Monalisa

wp-monalisa is the plugin that smiles at you like monalisa does. place the smilies of your choice in posts, pages or comments.

Sohaus Clean Emoji Slugs vs wp-Monalisa