HoldOn.js is a jQuery plugin to create CSS UI blocker. It's useful to prevent that your user do something wrong while something in the background is executed.
Easy Z Modal is a simple, customizable and dynamic jQuery plugin to create modals and dialog boxes.
Smoke is a jQuery plugin that is designed for use with Bootstrap 3 and has lots of helpful features including form validation, notifications, progress bar and more.
rmodal.js is a simple and lightweight modal dialog with no external dependencies.
jQuery.modal is a jQuery plugin for simple modal boxes, alerts, prompts, confirms. It's responsive and many other options included.
animatedModal.js is a jQuery plugin to create a fullscreen modal with CSS3 transitions. you can use the transitions by animate.css or create yourself their transitions.
jQuery Confirm is a multipurpose jQuery plugin for alert, confirm and dialog. It provides set of features like, Auto-close, Ajax-loading, background-dismiss, themes and more.
ProjectBlocker is a handy jQuery solution for blocking responsive, IE, or incomplete bits from being seen while in development.
A call-to-action button that animates and turns into a full-size modal window. It's created by using jQuery, CSS transition and transformations.
Submodal is a jQuery plugin to add submodals to Bootstrap 3.x modals.
A small collection of dialog effects using CSS animations for your inspiration. Some effects use SVG animations of morphing paths with the help of Snap.svg.