Keybase - Keybase will be a public directory of publicly auditable public keys.
Dropbox - Online Sync and File Sharing
ZeroNet - ZeroNet. Open, free and uncensorable websites, using Bitcoin cryptography and BitTorrent network. Download for Windows 9. 6MB · Unpack · Run ZeroNet. exe.
Syncthing - Syncthing replaces proprietary sync and cloud services with something open, trustworthy and...
IPFS - IPFS is the permanent web. A new peer-to-peer hypermedia protocol.
ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.