Rafael Paulino

With this plugin you can place an iframe inside the TinyMCE text editor. 
You click a button in TinyMCE and a window appears to place the iframe data. 
Then just click on Ok and a shortcode is inserted with the iframe data and on the front the iframe is presented.
Com este plugin você consegue colocar um iframe dentro do editor de texto TinyMCE. 
Voce clica em um botão no TinyMCE e aparece uma janela para colocar os dados do iframe. 
Depois é só clicar em Ok e um shortcode é inserido com os dados do iframe e no front é apresentado o iframe.

Rafa TinyMCE Iframe

With this plugin you can place an iframe inside the TinyMCE text editor.

nabtron

Wrapper for WordPress does a simple thing, adds a wrapper to your WrodPress.
Joomla comes with built-in wrapper which is missed in WordPress by many wordpress users.
Options in admin panel include:
<ul>
<li>desired url</li>
<li>select page on which wrapper has to be shown</li>
<li>height </li>
<li>width</li>
<li>show scroll bar or not</li>
<li>show border or not</li>
</ul>
Up coming version will have many more options
Found a bug or have a feature request ? <a href="https://nabtron.com/wp-wrapper/" rel="nofollow ugc"> 
Report here</a>

WP Wrapper

Wrapper for WordPress pages using iFrame. Various options in admin panel

Rafa TinyMCE Iframe vs WP Wrapper