Bashupload - Upload files from command line to share between servers
WebDrive - WebDrive File Access Client allows you to open and edit server-based files without the additional step of downloading the file.
FilePizza - Open source application used to transfer file via WebRTC and WebTorrent.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
BlackHole File Transfer - Blockchain-based file transfer. Designed for everyday use.
Air Explorer - Air Explorer is a software to manage all your multiple cloud drives (like Dropbox, Onedrive, Google Drive, Mega, Mediafire, Box, Hidrive, Yandex, Baidu,...) as well as WebDav and FTP connections.