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