jQuery UI Dialog

Displays customizable dialog windows.

Colorbox

jQuery lightbox and modal window plugin

Magnific Popup

Fast, light, mobile-friendly and responsive lightbox and modal dialog plugin. Open inline HTML, ajax loaded content, image, form, iframe (YouTube video, Vimeo, Google Maps), photo gallery. Animation effects added with CSS3 transitions. For jQuery or Zepto.

Avgrund Popins

Avgrund is a jquery plugin for modal boxes and popups. It uses new concept showing depth between popup and page. It works in all modern browsers and gracefully degrade in those that do not support CSS transitions and transformations

W2UI: New JavaScript UI Library

Complete set of JavaScript UI widget for development of data-driven web applications. Includes layout, grid, toolbar, sidebar, tabs, forms, fields, popup, overlay

Remodal

Flat, responsive, lightweight, easy customizable modal window plugin with declarative state notation and hash tracking.

jBox

jBox is a powerful and flexible jQuery plugin, taking care of all your popup windows, tooltips, notices and more.

Custombox

jQuery Modal Window Effects with transitions CSS3.

bPopup

bPopup is a lightweight jQuery modal popup plugin (only 1.49KB gzipped). It doesn’t create or style your popup but provides you with all the logic like centering, modal overlay, events and more. It gives you a lot of opportunities to customize so it will fit your needs.

jQuery Browser Rejection

jReject is a simple tool for rejecting specific browsers in a nice modal window