output.txt

> generateZalgo()
b̖k͔X̍h̪l͂eͦz̋Uͪs̐o͓L̐

> generateZalgo()
p̘H͑q̈z̊B͕T̾D͂g̢o͖q͚5ͦ

> generateZalgo()
șA̷9̣n̩5̞y̘J̸N̬hͩf̴Jͮ

zalgo-password-generator.js

const SECURITY = 128 // minimum security requirement in bits

function secRand (count) {
  const min = 2 ** 16 % count
  const rand = new Uint16Array(1)

  let num = min

  do num = crypto.getRandomValues(rand)[0]
  while (num < min)

  return num % count
}

function generateZalgo () {
  const alnum = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
  const diacritics  = [
    '\u0300','\u0301','\u0302','\u0303','\u0304','\u0305','\u0306','\u0307','\u0308','\u0309','\u030a','\u030b','\u030c','\u030d','\u030e','\u030f',
    '\u0310','\u0311','\u0312','\u0313','\u0314','\u0315','\u0316','\u0317','\u0318','\u0319','\u031a','\u031b','\u031c','\u031d','\u031e','\u031f',
    '\u0320','\u0321','\u0322','\u0323','\u0324','\u0325','\u0326','\u0327','\u0328','\u0329','\u032a','\u032b','\u032c','\u032d','\u032e','\u032f',
    '\u0330','\u0331','\u0332','\u0333','\u0334','\u0335','\u0336','\u0337','\u0338','\u0339','\u033a','\u033b','\u033c','\u033d','\u033e','\u033f',
    '\u0340','\u0341','\u0342','\u0343','\u0344','\u0345','\u0346','\u0347','\u0348','\u0349','\u034a','\u034b','\u034c','\u034d','\u034e',
    '\u0350','\u0351','\u0352','\u0353','\u0354','\u0355','\u0356','\u0357','\u0358','\u0359','\u035a','\u035b','\u035c','\u035d','\u035e','\u035f',
    '\u0360','\u0361','\u0362','\u0363','\u0364','\u0365','\u0366','\u0367','\u0368','\u0369','\u036a','\u036b','\u036c','\u036d','\u036e','\u036f'
  ].join('')
  const len = Math.ceil(SECURITY / Math.log2(alnum.length * diacritics.length))
  let pass = ''

  for (let i = 0; i < len; i++) pass += alnum[secRand(alnum.length)] + diacritics[secRand(diacritics.length)]

  console.log(pass)
}