David Attard

The DC WordPress popup plugin allows you to create your own customized popups for any page or post on your WordPress installation. This is great if you want to make sure you create relevant popups for the different content on your site, making sure you increase the conversion rates of each of your pages.
The WordPress popup plugin allows you to customize all of the HTML which is displayed in the popup, and also allows you to have specific parameters for each popup.
<ul>
<li>Ability to enable / disable the wordpress popup plugin window at will</li>
<li>Customize the text of the header to whatever you prefer</li>
<li>Customize all of the HTML of the popup</li>
<li>Choose whether to show the plugin on the following pages / sections (Home, Posts, Pages, Everywhere else)</li>
<li>Choose whether to show it to Logged in Users or Logged out Users.</li>
<li>Choose whether you ALWAYS want to show the plugin or how often you would like to show the plugin</li>
<li>Define the number of seconds between showing the popup</li>
<li>Choose whether you want to lock the scrolling ability whilst the popup is showing</li>
</ul>

DC Popup Custom

The DC WordPress popup plugin allows you to create your own customized popups for any page or post on your WordPress installation.

MarcusPope

Azragh

J-Ro

This plugin preserves the user-generated HTML markup in the TinyMCE editor. Unlike other plugins this one allows developers to work in the HTML tab AND end-users to work in the WYSIWYG Visual tab at the same time! No longer will your HTML markup be completely munged into an unrecognizable form when you switch between those tabs. And you don’t have to hang your users/editors out to dry when you hand off the project with a disabled Visual tab.
<h4>IMPORTANT: Please read the installation instructions carefully. If you have existing content it will not render properly after activating this plugin until you use the Fix It Tools.</h4>
(One user didn’t read or follow these steps and panicked thinking I ruined their website.)
It also supports HTML5 Block Anchor tags in addition to other HTML5 elements, something that is currently not supported in WordPress via any existing plugins.

Preserved HTML Editor Markup Plus

Preserves HTML and developer edits in HTML AND WYSIWYG tab.  Supports inline scripts/css, JavaScript code blocks and HTML5 content editing

DC Popup Custom vs Preserved HTML Editor Markup Plus