For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Onionshare - OnionShare lets you securely and anonymously share a file of any size with someone.
Dropbox - Online Sync and File Sharing
ShareDrop - HTML5 clone of Apple's AirDrop - easy P2P file transfer powered by WebRTC
Google Drive - Access and sync your files anywhere
Send Anywhere - Send whatever you want, wherever you want
Mega - Secure File Storage and collaboration