The most popular alternative is Magnific Popup, which is both free and Open Source. If that doesn't suit you, our users have ranked 6 alternatives to Shadowbox so hopefully you can find a suitable replacement. Other interesting Shadowbox alternatives are Fancybox (Freemium), Featherlight.js (Free, Open Source), Lightbox 2 (Free, Open Source) and frescoJS (Freemium).
- Magnific Popup is a responsive lightbox & dialog script with focus on performance and providing best experience for user with any device
(for jQuery or Zepto.js).
- FancyBox is a tool for displaying images, html content and multi-media in a Mac-style "lightbox" that floats overtop of web page. It was built using the jQuery library.
- Featherlight is a very lightweight jQuery lightbox plugin. It's simple yet flexible and easy to use. Featherlight has minimal css and uses no inline styles, it offers image, ajax and iframe support out of the box.
- Lightbox is a simple, unobtrusive script used to overlay images on the current page. Its a snap to setup and works on all modern browsers.
- Create stunning overlays that work great at any screensize, in all browsers on every device. Fresco is a beautiful responsive lightbox.
- ColorBox: light-weight, customizable lightbox plugin for jQuery 1.3 & 1.4