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:

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Current Usage: 0
Use this extension to export your financial batches to Microsoft Great Plains.
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Allows Zaakpay payment processor to be used with the civicrm. More info at Extension page on github...
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Upgrades event iCal buttons to a better looking dropdown that includes a link to Google Calendar.
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This extension protects the use of a personal from address in the Send E-mail takas (after search). It does not protect the use of personal from address in CiviMail (Mass mailings)....
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This extensions allows you to add a coordinator (contact) for a tag, with an end and start date. See GitHub documentation for more information. This extension was developed for PUM (http://www.pum.nl) and is freely available. We do not aim to package it but feel free to ask us any questions!...
Current Usage: 0
The Drupal core contact module provides a no-frills way for users to email you via a simple webform. If you like that module, but would also like those form submissions to be recorded in CiviCRM, then this no-frills extension is for you....
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This extension adds a new API to CiviCRM: Entity is FinancialItem, action is Get. You can also use the derived actions getsingle, getvalue, getcount etc....
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The DefaultDashlets CiviCRM extension creates a settings page that allows administrators to define the active dashlets for new users based on group membership. Usage Enable the extension and visit /civicrm/admin/defaultdashlets (Administer > Default Dashlets) to set default dashlets by group....
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This project provides a kind of webservices integration between a CiviCRM (Drupal-based only, Canada-specific) installation and the Represent Open North web service at http://represent.opennorth.ca...
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The native CiviCRM extension ContactSegment has been funded by PUM Senior Experts (https://www.pum.nl) and developed by CiviCooP (https://www.civicoop.org/). It is an open source extension and available for the general public under the AGPL-3.0 license....
Current Usage: 0
This extension adds the ability to display a premium on a contribution page only when a certain set of membership type and status criteria are met. This enables an organization to offer "member only" premiums for early renewal or other promotions. The membership status field can also be set to "Expired" to create rejoin incentives, visible only to expired members....
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This module is used to "certify" participants of CiviEvents. A certification in this context is adding a CiviCRM contact to a CiviCRM group and keeping a record of that transaction. Certifications can occur automatically as participants change status (using CiviCRM API), or in bulk for any event by using the 'sync' tab on the Certification Rule....
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This extension allows organisations to upload Just Giving Payments into CiviCRM. The end result is that the contributions and donors are all recorded within a single batch which can then be reonciled to the finance system. Installation Guide can be found here...
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This module provides an easy way to change the Drupal user to CiviCRM contact associations through the Drupal user page. Drupal project page....
Current Usage: 0