tweetnacl
Port of TweetNaCl cryptographic library to JavaScript
public-ip
Get your public IP address — very fast!
keypair
Generate a RSA PEM key pair from pure JS
ed2curve
Convert Ed25519 signing keys into Curve25519 Diffie-Hellman keys.
ccxt
A cryptocurrency trading API with more than 100 exchanges in JavaScript / TypeScript / Python / C# / PHP / Go