<p>Virtual Lightbox is a Java-base tool for comparing images online developed for the academic humanities, the library and museum community, and any users who use images as an important data type. It is available as both an application, which functions as a virual whiteboard and includes peer-to-peer, and an applet, which provides a flexible environment for image comparison. Virtual Lightbox was first developed in 2000, with version 2.0 of applet released in 2004.</p>