//Here is how you encode normal text to base64 in Node.js:
var b = new Buffer('JavaScript');
var s = b.toString('base64');
// SmF2YVNjcmlwdA==

//And here is how you decode base64 encoded strings:
var b = new Buffer('SmF2YVNjcmlwdA==', 'base64')
var s = b.toString();
// JavaScript



//Let's encode a base64 encoded string to hex:
var b = new Buffer('SmF2YVNjcmlwdA==', 'base64')
var s = b.toString('hex');
// 4a617661536372697074

//Now decode it to something humans can read:
var b = new Buffer('4a617661536372697074', 'hex')
var s = b.toString('utf8');
// JavaScript