BoxCryptor - Boxcryptor encrypts your sensitive files before uploading them to cloud storage services like Dropbox, Google Drive, Microsoft OneDrive, Box, and many others.
VeraCrypt - VeraCrypt is a free open source disk encryption software for Windows, Mac OSX and Linux.
CryptoForge - CryptoForge is handy-to-use file encryption program for individual and organization to get a reliable safety.
Cryptomator - When it comes to saving your files on a cloud server, it is important to ensure the security of those files. Keeping your delicate files out of the wrong hands can save you a lot of time and hassle. Read more about Cryptomator.
Advanced Encryption Package - For the first time there is an encryption system named Advanced Encryption Package that uses 20 tested and strong encryption algorithms together with AES, Blowfish, Twofish, GOST, Serpent and others.
QuickCrypto - QuickCrypto is advanced encryption program designed for the encrypting the personal data stored in the internal and removable drives.