The OpenPhoto Project is a web-based tool for aggregating and centralizing personal photos. It is an open source project that allows users to retrieve all of their photos from photo hosting sites like Flickr and Picasa, and store them in one personal online location. Once all the pictures are located and moved to a central storage place, they are also backed up. Their API is REST-based and exposes the OpenPhotoâ€™s file organization functions. It returns JSON-formatted data.