Extensions Directory

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:

This listing displays CiviCRM extensions that work on all Content Management Systems (CMS). You can also browse directories of integrations that are made specifically for Backdrop, Drupal, Joomla and WordPress. View newest extensions.

Changes the default so it doesn't send a confirmation email when registering a contact to an event from the back office. Nothing more, really simple but avoids sending emails by mistake.
Current Usage: 95
Provides email delivery for email from CiviCRM via MailChimp's Mandrill service.
Current Usage: 95
SMS API for CiviCRM to send sms through the API

Current Usage: 94
A simple user interface to help with creating personalised links when sending emails from CiviCRM.
Current Usage: 91
Current Usage: 91
Current Usage: 90
Integrates the TSYS payment processor with CiviCRM.

Current Usage: 83
Adds a custom data set to groups and adds a permission
Current Usage: 83
Current Usage: 82
Restrict online registration to certain events to members only but still have other events open to the public.
Current Usage: 79
Current Usage: 78
This is a simple extension that collapses both the communication preferences and demographics sections by default on the summary page.
Current Usage: 77
Restrict users from viewing/editing contributions and other entities based on permission of financial types.
Current Usage: 77
Current Usage: 70