Simple base64 encode/decode for JavaScript
npm install simple-base64
const base64 = require('simple-base64');
const encodedKorean = base64.encode('안녕하세요'); // -> 7JWI64WV7ZWY7IS47JqU
base64.decode(encodedKorean); // -> 안녕하세요
const encoded = base64.encode('Hello World'); // -> SGVsbG8gV29ybGQ=
base64.decode(encoded); // -> Hello World