This projects helps to display the structure of json schemata (v4) and is based on docson as a CouchApp.
Just create a new widget html file, like:
<!-- schema.html -->
<!DOCTYPE html>
<html>
<head>
<title>Schema view</title>
</head>
<body>
<script src="./widget.js" data-schema="./schemata/schmema.json"></script>
</body>
</html>
And put all the required schema files under /_attachments/schemata/
folder.
After you have done this you can push the CouchApp, e.g. via erica
erica push http://username:pwd@127.0.0.1:5984/schemaViews
Then you can see your schema file in a nice formatted design, under:
http://127.0.0.1:5984/schemaViews/_design/schemaView/schema.html