This Magento 2 module allows you to run CLI commands from Magento 2 admin panel (System > Tools > Command Line) over exec PHP function. It is helpful once you do not have ssh access to your server or don't want to use it. With this module, you can make reindex from the admin panel without PuTTY.
You can restrict access to CLI interface via Magento 2 Access Control List. We have added required admin password field for more secure.