title: How do I shorten a base64 string?
body: <p>What is the easiest way  to shorten a base 64 string. e.g </p>
  
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  <p>I just learned how to convert binary to base64. If I'm correct, groups of 24bits are made and groups of 6bits are used to create the 64 charcters <code>A-Z a-z 0-9 +/</code></p>
  
  <p>I was wondering is it possible to further shrink a base 64 string and make it smaller; I was hoping to reduce a 100 character base64 string to 20 or less characters.</p>