@ngriffin_uk/auth-encoding

Strict base16/hex, base32, base64, and base64url codecs.

pnpm add @ngriffin_uk/auth-encoding

import {
  decodeBase64Url,
  encodeBase32,
  encodeBase64Url,
} from "@ngriffin_uk/auth-encoding";

const token = encodeBase64Url(bytes);
const restored = decodeBase64Url(token);
const otpSecret = encodeBase32(bytes);

Malformed encodings throw TypeError rather than being decoded permissively.