CTF platforms

Links to available CTF platforms to put skills and tools to the test

Always Online

Crackmes

Reverse engineering CTF challenges

An Interactive Cyber Security Platform | Defend the WebDefend the Web

Level by Level with increasing difficulty - Tests your web app hacking skills

Embedded Security CTF

Specifically challenges geared towards embedded devices

Hacking Training For The BestHack The Box

Red Team platform with OSINT, DFIR, Crypto etc. challenges

Welcome to MysteryTwister! | MysteryTwister — The Cipher Contest

Cryptography based CTF challenges

OverTheWire: Wargames

Level by Level with increasing difficulty - Provides training on essential CLI techniques

PWN Challenge

Reverse engineering - Binary exploitation CTF challenges

SmashTheStack Wargaming Network

Level by Level with increasing difficulty - Provides training on essential CLI techniques

TryHackMe | Cyber Security TrainingTryHackMe

Similar to HackTheBox but provides more of a hand-holding tutorial based experience

Reversing.Kr

Reverse engineering CTF challenges

Viblo CTF | Hack The Brain - Capture The FunViblo CTF

CTF with challenges and educational resources

Google CTF

Hacker101 CTF

XSS game

An Educational CTF style for XSS

Self-Hosted

GitHub - juice-shop/juice-shop: OWASP Juice Shop: Probably the most modern and sophisticated insecure web applicationGitHub

Not technically a CTF but is a purposefully vulnerable web app designed to test your abilities at attacking the OWASP top ten

GitHub - rapid7/metasploitable3: Metasploitable3 is a VM that is built from the ground up with a large amount of security vulnerabilities.GitHub

Virtual machine used to train and practice MetaSploit techniques. Provided by Rapid7.

Vulnerable By Design ~ VulnHub

Collection of virtual machines with purpose built vulnerabilities