Google Drive - Access and sync your files anywhere
Kleopatra - Kleopatra is a certificate manager and GUI for GnuPG.
ShareFile - Secure file sharing and sync
KeePassXC - KeePass Cross-Platform Community Edition - A community maintained fork of the popular KeePassX...
Dropbox - Online Sync and File Sharing
KeePass - KeePass is an open source password manager. Passwords can be stored in highly-encrypted databases, which can be unlocked with one master password or key file.