GnuPG for Windows
Complete and free implementation of the OpenPGP standard
Bug-fix-only libev port of shadowsocks
End-to-end encrypted cloud for photos, videos and 2FA secrets
CLI wrapper around aws-encryption-sdk-python
A cross-platform crypto-steganography toolkit
Security Extensions to File Managers
Sign PDF with Digital Signature Certificate
Secure communication software
An advanced file manager with qss themes and iso and folder previews
antigift is simple cross-platform, files & folders encryption tool
Morse Code Utilitiies to convert text messages to & from sound files.
A simple tool for split, zip, and encrypt files
A command line interface for encryption and decryption using the NTRU
Encryption/Decryption demonstration app using the S-DES algorithm
AES Cipher, Base64 encoder, SHA calculator
UDP based desktop chatting app which supports AES-256 bit encryption.
Stanford Javascript Crypto Library
FIDO strong authentication, encryption, digital signature engine
A flat-file database program written in bash shell and awk scripts.
more convenient one-time-pad encryption.
An encryption tool for creating file archives
Secure mail + Tor gateway