Simple Gal is a very simple gallery script. It does not require a backend database, since it works off of the folder structure of the defined gallery photo folder. It provides a way to categorize photos simply by creating a sub-folder and dropping photos right in. It is ready to be dropped right into any existing site. It comes with a basic version of lightbox setup and is ready to use. It also comes with a stylesheet setup with default styles. It has a very small footprint and is highly customizable.