Contrary to deep web, Darknet is better known to the people. It is an encrypted network built on top of the existing internet, and specific software or tools are required to access the darknet. It is possible, conventional protocols used on the internet might not work on the darknet.
Darknet provides anonymity to the users. One such darknet is Tor or The Onion Router. You require the Tor browser to enter into the Tor's network.