title: Postman Chrome: What is the difference between form-data, x-www-form-urlencoded and raw
body: <p>I am using the Postman Chrome extension for testing a web service.</p>
  
  <p>There are three options available for data input.</p>
  
  <p>I guess the <code>raw</code> is for sending JSON.</p>
  
  <p>What is the difference between the other two, <code>form-data</code> and <code>x-www-form-urlencoded</code>?</p>