Coen Jacobs

Adds a custom post type that can be easily inserted at multiple spots, including widgets. Easy way to create WYSIWYG widgets.
This plugin is still alive. It has been tested to run on the most recent WordPress version and it still works fine. Future versions will bring more features and an updated code base.
Please use the <a href="https://wordpress.org/support/plugin/smart-wysiwyg-blocks-of-content" rel="ugc">support forums</a> to request support in case you have some kind of trouble. You can contribute to the plugin via the <a href="https://github.com/coenjacobs/smart-wysiwyg-blocks-of-content" rel="nofollow ugc">GitHub repository</a>. Pull requests or bug reports are very welcome there.

Smart WYSIWYG Blocks Of Content

Adds a custom post type that can be easily inserted at multiple spots, including widgets. Easy way to create WYSIWYG widgets.

feedmeastraycat

Note: This plugin still works but it doesn’t really contain any major features that the native Text widget is missing. The plugin is no longer in active developement.
This plugin adds a rich text widget where the content is edited using the standard WordPress visual editor which most users already are familiar with. 
It uses the WP core function wp_editor() without adding a custom post type post for each widget making the widget quicker and simpler to edit.
Feel free to help with developement or issue reporting on <a href="https://github.com/feedmeastraycat/wp-editor-widget" rel="nofollow ugc">Github</a>!
<h4>Languages</h4>
<ul>
<li>English</li>
<li>Swedish</li>
<li>German</li>
<li>Danish</li>
<li><a href="https://translate.wordpress.org/projects/wp-plugins/wp-editor-widget" rel="nofollow ugc">More translations</a></li>
</ul>

WP Editor Widget

I used it to add client instructions to an admin page. This makes adding screenshots and video quite easy.



Works Perfectly

WP Editor Widget adds a rich text widget where the content is edited using the standard WordPress visual editor.

Smart WYSIWYG Blocks Of Content vs WP Editor Widget