File Sharing Software for Chrome OS
Dropbox
Store your files in the cloud with Dropbox and use them across all your devices or share them with friends. Dropbox is a cloud backup services that can be used to store your files online in a secure fashion. With Dropbox you receive 2GB of free storage space when your register, you also get 500MB extra storage for every friend you refer. If you want more you have to opt for a paid subscription.
Signal
Signal is a cross-platform encrypted messaging application that has a strong focus on privacy. The application is developed by Signal Messenger LLC and provides users with features like one-to-one and group messages, which can include files, voice notes, images and videos. The software is famous for being used by the whistleblower and privacy advocate Edward Snowden who once said "I use Signal every day, it is the most scalable encryption tool we have".