Brian

Hide Plugins is a light-weight plugin that gives a single admin user the ability to hide plugins prevent them from being activated, deactivated, or deleted by clients and other users, including administrators. By activating Hide Plugins, you will be able to see all plugins and a toggle to hide each plugin from other users on the Plugins page. Hide Plugins will always remain hidden.
Note that the dropdown on the Edit Plugins page will not be affected, since it does not have a filter to hook into. Hidden plugins will remain active, so traces of the plugin in areas other than the Plugins page (like options pages in the admin menu) will still be visible. If you also want to hide menus, we recommend using <a href="https://wordpress.org/plugins/admin-menu-editor/" rel="ugc">Admin Menu Editor</a>.

Hide Plugins

Hide installed plugins from clients and other admin users.

K. Tough

The ROT13 Encoder/Decoder plugin allows bloggers and commenters to “encrypt” parts of their writing output with the <a href="http://en.wikipedia.org/wiki/ROT13" rel="nofollow ugc">ROT13 cipher</a> in order to conceal content from other readers who don’t wish to read them.
Some cases where you or your site users may want to ROT13 content:
<ul>
<li>Spoilers on a fan website when some visitors may not have caught up to the book/movie/TV episode being discussed.</li>
<li>Discussing sensitive topics where a trigger warning may be required.</li>
</ul>
ROT13 Encoder/Decoder Features:
<ul>
<li>Allow readers to decode by single- or double-clicking the ROT13’d text.</li>
<li>Decoded content can be displayed inline or a tooltip-style popup.</li>
<li>Visitors can also use ROT13 in their comments: e.g. <code>[rot13]Spoilerific content example[/rot13]</code></li>
<li>Site admins can ROT13 entire comments in one click (Useful for comments that may violate community rules, but you don’t necessarily want to delete).</li>
</ul>
A TinyMCE menu button is added to the editor to help bloggers select text in their posts to ROT13.

ROT13 Encoder/Decoder

Plugin to encode/decode and display content using the ROT13 cipher.

Hide Plugins vs ROT13 Encoder/Decoder