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.
asciiflow - Infinite ASCII diagrams, save to Google Drive, resize, freeform draw, and export straight to text/html.
Dropbox - Online Sync and File Sharing
Core2D - A multi-platform data driven 2D diagram editor.
Google Drive - Access and sync your files anywhere
JavE - JavE (Java Ascii Versatile Editor) is a free Ascii Editor.
Mega - Secure File Storage and collaboration