hardrisk.github.io/base64text.html at master · hardrisk/hardrisk.github.io · GitHub

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>

</head>
<body>

<style>
#btnDeConv{display:none;}
</style>


<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<textarea rows=6 cols=15 autofocus></textarea><br>
<button id="btnConv">Convert</button>
<button id="btnDeConv">DeConvert</button>

<script>
str = "asd";

$('textarea').val(str);

$('#btnConv').click(function(){
  var txt = $('textarea').val();
  var b64 = btoa(unescape(encodeURIComponent(txt)));
  $('textarea').val(b64);
  $('#btnDeConv').show();
});
$('#btnDeConv').click(function(){
  var b64 = $('textarea').val();
  var txt = decodeURIComponent(escape(window.atob(b64)));
  $('textarea').val(txt);
});
</script>


</body>
</html>