Plugin for jQuery library being a free and lightweight (less than 10kB) alternative for Lightbox or Fancybox. Compatible with jQuery since version 1.7 and 99% browsers, mobile friendly. Embedded lazy loading. You can specify prefix of the class, background opacity, modal size, border radius, navigation images and other parameters; frydBox doesn't include any external CSS file. It's free also in commercial use. Since version 1.0.3 you have access to callback functions.