Daisuke Takahashi

Emoji support of WordPress 4.2+ requires internet connection to download image files from WordPress.org. In your business or educational network, however, you may not be able to use internet. 
With this plugin, you are free from internet!!
<h3>License</h3>
<ul>
<li>Copyright (c) 2012-2014 <a href="https://www.extendwings.com/" rel="nofollow ugc">Daisuke Takahashi (Extend Wings)</a></li>
<li>Portions (c) 2010-2012 Web Online.</li>
<li>Unless otherwise stated, all files in this repo is licensed under GNU AFFERO GENERAL PUBLIC LICENSE, Version 3. See LICENSE file.</li>
</ul>
<h4>CC-BY 4.0</h4>
<ul>
<li>72×72/</li>
<li>svg/
<ul>
<li>Copyright (c) 2014 Twitter, Inc and other contributors</li>
<li>Licensed under <a href="https://raw.githubusercontent.com/twitter/twemoji/3e21d10e5a01dabcbb7b5bd260b78a909a7b7f28/LICENSE-GRAPHICS" rel="nofollow ugc">Creative Commons Attribution 4.0 International</a></li>
<li>Fetched from <a href="https://github.com/twitter/twemoji" rel="nofollow ugc">twitter/twemoji</a></li>
<li>Version: 2.0.5</li>
<li>Commit: <a href="https://github.com/twitter/twemoji/commit/b47023cb1b95d7682f2a3c1fbf075733ace7a168" rel="nofollow ugc">b47023cb1b95d7682f2a3c1fbf075733ace7a168</a></li>
</ul>
</li>
</ul>

WP Local Emoji

Fugu Design

One-click maintenance mode
This plugin adds a button to the admin bar for toggling the builtin maintenance mode.
Core maintenance mode
A .maintenance file is generated and copied to the WordPress installation folder when turning on the maintenance mode. 
A maintenance.php file is generated and added to the wp-content folder for custom HTML code.
Your custom maintenance page will also be active during the core, plugins and themes updates.
<h4>Special Features</h4>
<ul>
<li>
set which roles can switch the maintenance mode
</li>
<li>
set which roles can bypass the maintenance mode on the frontend
</li>
<li>
set the entire HTML code used for the maintenance page
</li>
<li>
preview the maintenance page before saving
</li>
<li>
enable the theme file support, so you can create in each your themes a maintenance.php file to customize the maintenance page
</li>
<li>
restore all default settings
</li>
<li>
restore default HTML code
</li>
<li>
create/delete the maintenance file in the active WP theme
</li>
</ul>
<h3>Translations</h3>
<ul>
<li>English – default, always included</li>
<li>French</li>
</ul>

Maintenance Switch

Customize easily and switch in one-click to (native) maintenance mode from your backend or frontend.

WP Local Emoji vs Maintenance Switch