Audit Files
Checks for orphaned files on your site.
Similar to File Checker.
Modules
Stage File Proxy
When you clone your production database to dev, you will be missing files from the latest content. This module will automatically fetch them from the site when the content is accessed.
Media PDF Thumbnail
Generate a thumbnail from the first page of a PDF.
By default, Media Library shows the thumbnail field of Media types, but Document doesn't have one to show.
Taxonomy Manager
This module makes it easier to manage your taxonomy.
The collapsible interface allows you to see the terms all on one page and avoids core's issues with paging a big hierarchy.
Menu Block
Provides an enhanced menu block with additional configuration options vs core.
Create configurable submenus that follow the current path.
Drupal
Drupal Core
Views
Create custom content lists.
Drupal.org username field
Provides a field for Drupal.org usernames, and a service to access profile data via the public API.
External Entities
Configure external API endpoints as Drupal entities. On entity save, fetch data from the api and cache results in the field.
Migrate destination field value
Migrate into an existing entity's fields.