LTnow

This plugin was build of the fantastic Advanced Custom Fields plugin created by Elliot Condon, and was made so that referencing custom fields is easier. Here, you can see a full list of all your currently used field which is sortable by clicking on the headers, and should you need to learn more about the field or edit it, clicking the label name will take you to the field group’s page so you can do what you need to. The table sorting functionality incorporates the Tablesorter jQuery plugin by Christian Bach. Docs can be found at http://tablesorter.com/docs/.
*Note: This doesn’t display fields in your theme. It just gives you a complete list of your fields that you can reference easily and allows you to edit the field groups easily.
I tried to mark up the code for this plugin with lots of comments in hope that people can understand how it is working and expand on this functionality. Oh yeah, and all the function and variable names are based off Buster Bluth from Arrested Development.

ACF Field Display

Useful addition that displays a list of all your ACF custom fields including their Label, Name, Type, and Field Group they are associated with.

Bart Stroeken

One of the fancy things within WordPress-plugins, is the availability of shortcodes. 
These codes will provide access to plugin-specific things, like displaying a gallery, or a Google-Map. 
The downside about this, is that there’s no generic overview of all available shortcodes within your environment.
This plugin will provide a list of all available shortcodes, right where the action is. When you’re editing your content. And it won’t skip the details: it’ll show you what its origin is. 
Most of all, if it’s available in the sourcecode, the documentation will be shown.
The plugin is largely based on <a href="http://php.net/manual/en/book.reflection.php" rel="nofollow ugc">PHP’s Reflection functionality</a>, and therefore only available from PHP version 5.0.0.

Shortcode Reference

This plugin will provide a list and details about available shortcodes in your current installment. All when you need it most - when editing content.

ACF Field Display vs Shortcode Reference