tweetnacl
Port of TweetNaCl cryptographic library to JavaScript
@noble/ciphers
Audited & minimal JS implementation of Salsa20, ChaCha and AES
libsodium
The Sodium cryptographic library compiled to pure JavaScript (raw library, no wrappers)
libsodium-sumo
The Sodium cryptographic library compiled to pure JavaScript (raw library, no wrappers, sumo variant)