The structure of Rails views can become rather complicated with templates, layouts and partials inclusions multiple levels deep. Here are two tools for disentangling views.

The first one adds HTML comments to generated markup. These comments identify the file where the markup originated. Place it in config/initializers/show_view_structure.rb

The second tool works offline. It prints the hierarchical structure of template inclusions

There’s a limitation in that only explicit partial renderings are recognized. Layouts are not taken into account and partials rendered from helpers are not recognized either.