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.
Zapya - Zaypa is a cross-platform transferring and sharing!
Dropbox - Online Sync and File Sharing
RoxyApps Share me Files - Send your files to other users without any registration. The application provides extended options of uploading and storing files
Google Drive - Access and sync your files anywhere
ShareDrop - HTML5 clone of Apple's AirDrop - easy P2P file transfer powered by WebRTC
Mega - Secure File Storage and collaboration