JAVASCRIPT

nodejs string to base64

> console.log(Buffer.from("Hello World").toString('base64'));
SGVsbG8gV29ybGQ=
> console.log(Buffer.from("SGVsbG8gV29ybGQ=", 'base64').toString('ascii'))
Hello World

Encoding and Decoding Base64 Strings in Node.js

'use strict';

let data = 'stackabuse.com';
let buff = new Buffer(data);
let base64data = buff.toString('base64');

console.log('"' + data + '" converted to Base64 is "' + base64data + '"');

Decodes a string of data which has been encoded using base-64 encoding - Nodejs

const atob = str => Buffer.from(str, 'base64').toString('binary'); atob('Zm9vYmFy'); // 'foobar'