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 plugins or modules that are made specifically for Backdrop, Drupal, Joomla and WordPress. View newest extensions. There are also many more extensions in various stages of development available on CiviCRM's Gitlab.

Keep track of which extensions override core files, and to detect when a core file that's been overridden gets updated.
Current Usage: 536
Current Usage: 536
This extension adds a pivot report that suppots multiple CiviCRM entities.
Current Usage: 528
Current Usage: 494
Membership Extras for CiviCRM
Current Usage: 485
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: 483
The CiviCalendar extension is an CiviCRM component which allows visualizing different types of cases, events and activities.
Current Usage: 483
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: 429
Omnipay is an open source payment processor library that supports multiple payment processors (around 30 currently).
Current Usage: 425
Provides tokens for any related contact for all available contact tokens (e.g., to get the employer’s first name or spouse’s birth date).
Current Usage: 422
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: 394
Places recently-viewed items in the Menu bar for quick access.
Current Usage: 358
Tokens for emails: Supports events, contribtion pages, profiles, forms, petitions, addressing couples, nicknames. Links include checksum.
Current Usage: 358
Mobile application for few specific actions in CiviCRM
Current Usage: 352