BlackHole is secure, server-less file transfer that works with blockchain technology.
It's an open-source project and available for Windows and Mac.
EasyDB is a one-click, hosted database provider. We give you a database for the programming language of your choice, you build something cool. It’s that simple.
Drop is a simple way to share files faster and safer. It encrypts your data and deletes the files after 24 hours, leaving no digital footprint.
Upload a file, get a download link, and share it. That's it.-Envelop runs on blockstack. So you decide where your files are stored. Use the default storage or setup your own.-There's no file limits. No tracking. And it's open source.
Jottacloud is a Norwegian based company for files storage and syncing files between devices. Really easy to use. Besides files they focus on photos and have really nice photo app.