Synchronize Users to Contacts CiviCRM API extension
nSynch is a CiviCRM API extension which let you Synchronize Users to Contacts.
You can directly clone to your CiviCRM extension directory using$ git clone https://github.com/kewljuice/be.ctrl.nsynch.git
You can also download a zip file, and extract in your extension directory$ git clone https://github.com/kewljuice/be.ctrl.nsynch/archive/master.zip
Configure CiviCRM Extensions Directory which can be done from"Administer -> System Settings -> Directories".
Configure Extension Resource URL which can be done from"Administer -> System Settings -> Resource URLs".
The next step is enabling the extension which can be done from"Administer -> System Settings -> Manage CiviCRM Extensions".