Reveal Template – WordPress plugin for developers dealing with complex themes

Reveal Template helps determine the exact template being utilized to render the currently displayed page in WordPress or those to which WordPress falls back if the theme does not have a template of its own.

The revelations can be shown in several ways: in the site footer (default plugin setting), in a widget that can be placed into any widgetized area, as a shortcode within a post/page content area, or a template tag.