GTM DevTools Sidebar Panes for Chrome
More About GTM DevTools Sidebar Panes
You can use this extension to debug or check the macros inside the Google Tag Manager object of the current page. The GTM Macros pane shows all available macros including the latest event tracking data when available.
The GTM Datalayer pane gives easy access to the objects inside the dataLayer (when available inside the DOM).
The GTM Event Listeners pane gives easy access to registered GTM auto-events (Click Listener, Link Click Listener, Form Submit Listener) inside the debugDL object. To use this pane you have to install and use the GTM Sonar Chrome extension by Simo Ahava.
Panes will be updated by clicking DOM elements inside the elements panel or by switching between sidebar panes.