secure-web-storage
A simple wrapper for localStorage/sessionStorage that allows one to encrypt/decrypt the data being stored.
tweetnacl
Port of TweetNaCl cryptographic library to JavaScript
secure-timed-storage
Secure timed storage library for encrypting and managing data in localStorage with expiry
jose
JWA, JWS, JWE, JWT, JWK, JWKS for Node.js, Browser, Cloudflare Workers, Deno, Bun, and other Web-interoperable runtimes