Scott (@scottsweb)

Fillet adds a new IFrame button to the toolbar in the WordPress visual editor. By using a <a href="https://codex.wordpress.org/Shortcode" rel="nofollow ugc">shortcode</a>, it allows for safer, responsive and future proof embeds.
The chosen width and height for an IFrame embed is converted into a ratio which is used to scale your embeds across different devices.
<a href="http://scott.ee/" title="WordPress web design Hampshire" rel="nofollow ugc">a plugin by Scott Evans</a>

fillet

Safely embed responsive IFrames in the WordPress text editor.

Simon Scherieble

Simons FrameKiller is a small WordPress plugin that does nothing more than adding the frame killer code to the header of the page. 
I created this plugin for a project but thought that perhaps others might want to use it too. The plugin is provided “as is” without warranty. 
I am a development worker in South Sudan where I try to help a small NGO with IT. You can read more about me on https://simonspage.de

Simons FrameKiller

Simons FrameKiller adds the framekiller code to a Wordpress page

fillet vs Simons FrameKiller