Extensions are installable packages which give CiviCRM new functionality, and this directory provides a centralized list of extensions which the CiviCRM community has created.

Further resources:

Send email notification to event speakers when a new individual registers....
Current Usage: 0
CiviCRM native extension to check if the CMS is in maintenance mode when I get a REST API and return error if so.
Current Usage: 0
This module offers a fully configurable/extendable Drupal view that provides the functionality to search from a postcode and a distance.
Current Usage: 0
This provides a heirarchical view of groups and their members at the url civicrm/groups/heirarchy. An additional Drupal permission is added for accessing this page as with large number of groups this is heavy on the number of database queries....
Current Usage: 0
This powerful and popular module provides a smart form builder and processor with many features integrated with CiviCRM.
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