Facets
Search facets, shows results count for filter options, with extra widgets.
Enable Facets Exposed Filters submodule to integrate with Better Exposed Filters.
Modules
Smart Date
Enhanced date field, including recurring date handling.
Datetime
Datetime field storage.
Display PDFs with PDF.js.
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.
PDF Preview
Generate thumbnail of first page in PDF.
External Entities
Configure external API endpoints as Drupal entities. On entity save, fetch data from the api and cache results in the field.
Version 3 is in development, some modules are not compatible.
Modules Info
Fetch module info from drupal.org.
Manage at Content > Modules.
Content Model Documentation
Provides content entities for documenting site architecture.
Configure documentable entity types (doesn't automatically support everything).
Devel
Developer tools.