WP Lightbox 2 is awesome tool for adding responsive lightbox effect for images and also create lightbox for photo album/gallery on your WordPress blog
Lightbox is the perfect tool for viewing photos.
Showing login, register or lost password form modal popup with ajax.
WP Popup plugin is beautifully designed and elegant plugin with focus on ease of use and functionality. Create unlimited Popups with subscriber forms.
Lightbox Bank is the perfect responsive, mobile optimized image lightbox plugin for displaying images & videos on WordPress.
Easily enable the FancyBox jQuery extension on just about all media links. Multi-Site compatible. Supports iFrame and Flash movies.
Lightbox Slider plugin is allow you to add unlimited images to gallery with lightbox window.
Very easy to use WordPress lightbox plugin to display YouTube and Vimeo videos in an elegant lightbox overlay.
Display your Gumroad products right on your WordPress page.
Notification Widget is a overlay allowing you to get a individual overlay for your website.
Develop your site pixel-perfect by overlaying the comp!
The Genesis Slide-in Widget creates a slide-in panel, to quickly show side content, navigation, contact form, notifications or profile information.
Hearthstone Cards for WordPress adds an overlay to written card names and displays the associated image while hovering them.
The Genesis Overlay Widget plugins creates a full screen overlay widget area.
This plugin used to add the lightbox (overlay) effect to all images on your WordPress site with Pojo Framework.
Huge-It Popup Colorbox is the most spellbinding plugin in WordPress that implement Lightbox-effect look of the images and videos
Responsive Lightbox allows users to view larger versions of images and galleries in a lightbox (overlay) effect optimized for mobile devices.
View image, video (YouTube, Vimeo), page, inline HTML, custom content in lightbox
Easy Popup Announcement helps you to display popup / pop-over / popup overlay on your WordPress website.
A simple Todo-checklist and task manager, which allows you to create and manage tasks from every page on your website through an overlay view.
Integrates Video Lightbox plugin with WooCommerce
Lightbox Plus Colorbox permits users to view larger versions of images, simple slide shows, videos and content all in an overlay.
Adding Share Buttons as Overlay on YouTube Videos
Overlay a customizable grid over your site to help with design layout using the `hashgrid.js` library.
A simple and full customizable WordPress plugin for slideshow creation, responsive or none
Version: 2.1 Easily charge for articles, blogs, or videos (and make 3-10x more money) using MediaPass Publisher Dashboard.
Adds Colorbox/Lightbox functionality to images, grouped by post or page. Works for WordPress and NextGEN galleries. Comes with different themes.
Automatically applies ThickBox script that overlays linked image, inline, iFramed and AJAX content on the page in simple effect.
Provides a thumbnail area in Your Profile, for users to upload & crop new images in an overlay to be saved and stored to their profile.
Seamless integration of Lightview (similar to Lightbox, Thickbox, Floatbox, Thickbox, Fancybox) to create a nice overlay to display images and videos