dev.Fishy

EN:
Adds a simple widget to the sidebar that displays a random posts.
RU:
Добавляет простой виджет в боковую панель сайта, который отображает случайные посты.

RandPost widget

wpmen

<blockquote>
What we have created is a combination of elegance and simplicity. 
 To be able to post random show site users. Simply install and activate the plugin Random post with ajax and only using a shortcode in any part of the site that you want to display random posts.
</blockquote>
<h4>Random Post with Ajax includes the following features:</h4>
<ul>
<li>Choice Categories</li>
<li>Choice of Post Type</li>
<li>Possibility to choose the number of posts</li>
<li>Show Content (Excerpt)</li>
<li>Display post date</li>
<li>Show Thumbnail of post</li>
<li>Beautiful design</li>
<li>User friendly</li>
<li>Responsive</li>
</ul>

Random Post with ajax

thanks to author

Combining beauty and efficiency to display random posts

RandPost widget vs Random Post with ajax