Free labs to train your Pentest/CTF and Computer Science Skills

[Luke38760]

-> Try Hack Me https://tryhackme.com
-> Attack-Defense https://attackdefense.com
-> alert to win https://alf.nu/alert1
-> CMD Challenge https://cmdchallenge.com
-> Exploration Education https://exploit.education
-> Google CTF https://capturetheflag.withgoogle.com
-> HackTheBox https://www.hackthebox.com/
-> Defendtheweb https://defendtheweb.net/
-> Hacksplaining https://www.hacksplaining.com/lessons
-> Hacker101 https://ctf.hacker101.com
-> Hacker Security https://capturetheflag.com.br
-> Hacking-Lab https://www.hacking-lab.com/events/
-> HSTRIKE https://hstrike.com
-> ImmersiveLabs https://immersivelabs.com
-> NewbieContest https://www.newbiecontest.org/
-> OverTheWire http://overthewire.org
-> Practical Pentest Labs https://practicalpentestlabs.com
-> Pentestlab https://pentesterlab.com
-> Penetration Testing Practice Labs http://www.amanhardikar.com/mindmaps/Practice.html
-> PentestIT LAB https://lab.pentestit.ru
-> PicoCTF https://picoctf.com
-> PWNABLE https://pwnable.kr/play.php
-> Root-Me https://www.root-me.org
-> SANS Challenger https://www.holidayhackchallenge.com
-> SmashTheStack http://smashthestack.org/wargames.html
-> The Cryptopals Crypto Challenges https://cryptopals.com/
-> Vulnhub https://www.vulnhub.com
-> W3Challs https://w3challs.com
-> WeChall http://www.wechall.net
-> HackerRank https://www.hackerrank.com
-> kaggle https://www.kaggle.com/
-> Zenk-Security https://www.zenk-security.com/