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.

Current Usage: 555
Keep track of which extensions override core files, and to detect when a core file that's been overridden gets updated.
Current Usage: 535
This extension adds a pivot report that suppots multiple CiviCRM entities.
Current Usage: 527
Geocoder extension provides geocoding from multiple providers (default is Open Street Maps) with advanced features over core geocoding

Requires - CiviCRM 5.x, php 5.6

Credit : the Wikimedia Foundation
Current Usage: 502
Minifies CSS/JS files which are passed through the assetbuilder in CiviCRM.
For example if it is installed on a CiviCRM system it will minify crm-menubar.css. If Stripe is installed it will minify stripe css/js.
Current Usage: 497
Twilio and CiviCRM integration allows delivering single and mass short message service (SMS) messages through its Twilio Gateway to mobile phone users.
Current Usage: 495
The CiviCalendar extension is an CiviCRM component which allows visualizing different types of cases, events and activities.
Current Usage: 483
The CiviMobileAPI extension is a CiviCRM component that allows to use a mobile application CiviMobile.
Current Usage: 470
Membership Extras for CiviCRM
Current Usage: 468
Sometimes CiviCRM can be real tough to debug. Especially when you are getting fatal errors, but only by some users, and you can't recreate the problems. This utility will send you a detailed email when a CiviCRM fatal error occurs.
Current Usage: 461
Omnipay is an open source payment processor library that supports multiple payment processors (around 30 currently).
Current Usage: 422
Places recently-viewed items in the Menu bar for quick access.
Current Usage: 413
This extensions makes the permission flag on a contact's relationship work as a true ACL.
Current Usage: 393
Provides an alternative implementation of the Contribution.Transact API, which is now deprecated. Recommended if using drupal webform_civicrm.

The implementation used in this extension is based on https://docs.civicrm.org/dev/en/latest/financial/orderAPI/#transitioning-from-contributiontransact-api-to-order-api
Current Usage: 391