Easy-to-use and powerful homomorphic encryption library
A high-level OpenPGP library
A simple, modern and secure encryption tool (and Go library)
Keybase Go library, client, service, OS X, iOS, Android, Electron
Open source disk encryption with strong security for the Paranoid
Petoron Quantum Standard (PQS)
antigift is simple cross-platform, files & folders encryption tool
STROBE cryptographic protocol framework
C++ cryptographic library (modern hash functions, ciphers, KDFs)
Stanford Javascript Crypto Library
FIDO strong authentication, encryption, digital signature engine
A Collection of Useful Java/Swing Code
Secure mail + Tor gateway
Text and image encryption and decryption software
Compiled into a single .jar file. Tiny Password Manager. Portable
A family of FLEA-inspired CSPRNGs and Stream Ciphers
A family of small-state CSPRNGs and Stream Ciphers
AES-128 bit file encryptor
ISC lets you encrypt & decrypt text and files of any type up to 4GB