tenvoy
PGP, NaCl, and PBKDF2 in node.js and the browser (hashing, random, encryption, decryption, signatures, conversions), used by TogaTech.org
ciphering
The typical use case for this high speed Node.js module is to convert data in common text to encrypted string.
secured-storage-web
A package for securing storage of web applications via encryption for localStorage, sessionStorage, cookies, and IndexedDB. It is customizable and easy to use, similar to default operations.