DirectoryScanner - Free Directory Server fingerprinting tool !
National Cyber Security Services - h2buster:-- A fast, threaded, recursive, web directory brute-force scanner over HTTP/2. Features:- 1. Fast and portable - install hyper and run. 2. Multiconnection scanning. 3. Multithreaded connections.
5 Ways to Directory Bruteforcing on Web Server - Hacking Articles