instashare - Share your photos to instagram from your mac

Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.

BlackHole File Transfer - Blockchain-based file transfer. Designed for everyday use.

Nubo - A self-hosted file sharing application in Haskell.

ToffeeShare - Send files of any size directly from your device, without ever storing anything online.

4sync - A wonderful application that links all of your computers and mobile devices together. Easiest way to back up and sync your files online. Cross platform file management in the cloud