Chris Hardie

Debug Bar Widgets adds a new panel to the <a href="https://wordpress.org/extend/plugins/debug-bar/" rel="ugc">Debug Bar</a> that displays all registered widgets.
It could be helpful to developers who want to check whether custom widgets are registering properly.
This plugin requires that the Debug Bar plugin be installed and activated.
Want to help make this plugin better? <a href="https://github.com/ChrisHardie/debug-bar-widgets" rel="nofollow ugc">Pull requests are welcome</a>.

Debug Bar Widgets

Debug Bar Widgets adds a new panel to the Debug Bar that displays all registered widgets.

Juliette Reinders Folmer

Debug Bar Taxonomies adds a new panel to the Debug Bar that displays detailed information about the registered taxonomies for your site.
<h4>Important</h4>
This plugin requires the <a href="https://wordpress.org/plugins/debug-bar/" rel="ugc">Debug Bar</a> plugin to be installed and activated.
Also note that this plugin should be used solely for debugging and/or in a development environment and is not intended for use on a production site.
If you like this plugin, please <a href="https://wordpress.org/support/view/plugin-reviews/debug-bar-taxonomies" rel="ugc">rate and/or review</a> it. If you have ideas on how to make the plugin even better or if you have found any bugs, please report these in the <a href="https://wordpress.org/support/plugin/debug-bar-taxonomies" rel="ugc">Support Forum</a> or in the <a href="https://github.com/jrfnl/Debug-Bar-Taxonomies/issues" rel="nofollow ugc">GitHub repository</a>.

Debug Bar Taxonomies

Debug Bar Taxonomies adds a new panel to the Debug Bar with detailed information about registered taxonomies. Requires "Debug Bar" plugin.

Debug Bar Widgets vs Debug Bar Taxonomies