tweetnacl
Port of TweetNaCl cryptographic library to JavaScript
jose
JWA, JWS, JWE, JWT, JWK, JWKS for Node.js, Browser, Cloudflare Workers, Deno, Bun, and other Web-interoperable runtimes
aes-js
A pure JavaScript implementation of the AES block cipher and all common modes of operation.
secure-web-storage
A simple wrapper for localStorage/sessionStorage that allows one to encrypt/decrypt the data being stored.