title: GUI-based or Web-based JSON editor that works like property explorer
body: <p><strong>Background:</strong> This is a request for something that may not exist yet, but I've been meaning to build one for a long time. First I will ask if anyone has seen anything like it yet.</p>
  <p>Suppose you have an arbitrary JSON structure like the following:</p>
  <pre><code>{
      'title_str':'My Employee List'
      ,'lastmod_str': '2009-June-15'
      ,'employee_table':[
          {'firstname':'john','lastname':'doe','age':'33',}
          ,{'firstname':'jane','lastname':'doe','age':'34',}
          ,{'firstname':'samuel','lastname':'doe','age':'35',}
      ]
  }
  </code></pre>
  <p><strong>Question:</strong> Is there a web-based JSON editor that could take a structure like this, and automatically allow the user to modify this in a user-friendly GUI?</p>
  <p><strong>Example:</strong> Imagine an auto-generated HTML form that displays 2 input-type-text controls for both title and lastmod, and a table of input-type-text controls with three columns and three rows for arr_list ... with the ability to delete or add additional rows by clicking on a [+][X] next to each row in the table.</p>
  <p><strong>Big Idea:</strong> The &quot;big idea&quot; behind this is that the user would be able to specify any arbitrary (non-recursive) JSON structure and then also be able to edit the structure with a GUI-based interaction (this would be similar to the &quot;XML Editor Grid View&quot; in XML Spy).</p>
  <p><strong>See also:</strong></p>
  <ul>
  <li><a href="https://stackoverflow.com/questions/22582471/is-there-a-json-api-based-cms-that-is-hosted-locally">Is there a JSON api based CMS that is hosted locally?</a></li>
  <li><a href="https://ux.stackexchange.com/questions/37237/treetable-as-a-flexible-condition-filter-editor">https://ux.stackexchange.com/questions/37237/treetable-as-a-flexible-condition-filter-editor</a></li>
  <li><a href="https://json-editor.github.io/json-editor/" rel="noreferrer">JSON-editor</a></li>
  <li><a href="https://duckduckgo.com/?q=yaml+gui" rel="noreferrer">YAML GUI</a></li>
  </ul>
  <p><strong>Update: (Thu 2014-07-31 18:31:11)</strong></p>
  <p>A github repository has been created to further track this closed SO post.</p>
  <ul>
  <li><a href="https://github.com/dreftymac/stackoverflow.questions.998832" rel="noreferrer">https://github.com/dreftymac/stackoverflow.questions.998832</a></li>
  </ul>