ShareDrop - HTML5 clone of Apple's AirDrop - easy P2P file transfer powered by WebRTC
inslideshow - Photos and albums transfer between all smartphones brands and/or PCs as well.
Resilio Sync - Resilient, fast and scalable file synchronization for enterprises and individuals
DownAlbum - Download Facebook, Instagram, Pinterest, Twitter, Ask.fm, Weibo Album.
SHAREit - SHAREit allows you to transfer files and data from your phone to another device without having to rely on WiFi or a data plan.
55Photos - 55Photos is a web application that lets you view, edit, manage, organize, transfer, download, upload, backup all your online photos and albums from one place.