EncFSMP - EncFSMP, a program to mount EncFS folders on Windows and OS X.
Syncany - Syncany is an open-source cloud storage and filesharing application.
File Lock PEA - Password-encryption of files and directories. File PEA encrypts files and folders with authenticated encryption to protect confidentiality and integrity. The program uses memory-hard key derivation functions to prevent custom hardware attacks.
Filestash - Filestash is a modern client for FTP, SFTP, S3, WebDAV, Minio,...
Encrypto - Encrypto lets you encrypt files before sending them to friends or coworkers.
Dropbox - Online Sync and File Sharing