Practice cybersecurity skills, penetration testing, and CTF challenges.

Subcategories

• Capture The Flag (CTF) - 39 resources (34 free, 5 freemium, 0 paid)
• Security Training - 40 resources (32 free, 5 freemium, 3 paid)

All Resources (79)

Capture The Flag (CTF)

• Backdoor SDSLabs Free
  • Security platform by SDSLabs with various hacking challenges across multiple categories.
• bi0s Wiki Free
  • Wiki from team bi0s covering CTF topics including reverse engineering pwn and crypto.
• Crackmes Free
  • Community-driven reverse engineering challenges for sharpening binary analysis skills.
• CryptoHack Free
  • Interactive cryptography challenges from basics to advanced ciphers.
• CTF Field Guide Free
  • Comprehensive CTF field guide by Trail of Bits covering tools techniques and strategies.
• CTFlearn Free
  • Community-driven CTF platform with challenges across multiple categories.
• CTFtime Free
  • Calendar and archive of CTF competitions worldwide.
• echoCTF Free
  • Online CTF platform with a variety of targets to attack and learn practical security skills.
• Exploit Education Free
  • Variety of VMs for learning computer security issues through hands-on exploitation.
• FLAWS AWS CTF Free
  • Amazon AWS CTF challenge teaching cloud security mistakes through a series of levels.
• Gin and Juice Shop Free
  • Modern vulnerable web application for practicing web security attacks in a safe environment.
• Hacker101 CTF Free
  • Free CTF platform from HackerOne with real-world web security challenges.
• Hackxor Free
  • Realistic web application hacking game designed by a PortSwigger researcher for training.
• ImaginaryCTF Free
  • Regular CTF competitions with beginner-friendly challenges and writeups.
• IO Free
  • Security challenges and wargames.
• Microcorruption Free
  • Embedded security challenges.
• OverTheWire - Challenges Free
  • Security wargames for learning.
• Pentest Ground Free
  • Online penetration testing practice environment with various vulnerable scenarios.
• PentesterLab Free
  • Web application security exercises.
• picoCTF Free
  • Free beginner-friendly cybersecurity competition.
• PicoCTF Free
  • Beginner-friendly CTF competition designed for high school students.
• Pwnable.kr Free
  • Wargame providing various pwn challenges regarding system security and binary exploitation.
• Pwnable.tw Free
  • Binary exploitation wargame with challenging pwn problems for advanced players.
• Pwnable.xyz Free
  • Binary exploitation wargame focusing on modern pwn techniques and vulnerability types.
• Reversing.kr Free
  • Reverse engineering challenges testing cracking and reverse code engineering abilities.
• Ringzer0Team Free
  • Online CTF platform with challenges across cryptography web forensics and more.
• Root Me Free
  • Free CTF platform with web, network, and system challenges.
• Root Me Free
  • French-origin hacking challenges platform with real-world scenarios.
• Roppers CTF Fundamentals Free
  • Free course designed to get students crushing CTFs with crypto forensics and more.
• SANS Holiday Hack Free
  • Annual holiday-themed security challenges maintained by SANS with rich storylines.
• SmashTheStack Free
  • Wargaming network and system challenges.
• VulnHub Free
  • Vulnerable machines for penetration testing practice.
• WebHacking.kr Free
  • Web-focused hacking challenges with levels ranging from basic to advanced techniques.
• XSS Game Free
  • Google's XSS challenge teaching how to find and exploit cross-site scripting vulnerabilities.
• CTF365 Freemium
  • Year-round CTF training platform.
• CyberSecLabs Freemium
  • Hands-on penetration testing labs.
• Hack The Box Freemium
  • Realistic penetration testing labs and CTF challenges.
• Hacking-Lab Freemium
  • Ethical hacking computer network and security challenge platform with competitions.
• TryHackMe Freemium
  • Guided cybersecurity labs from beginner to advanced.

Security Training

• Bugcrowd Free
  • Crowdsourced security platform connecting organizations with ethical hackers.
• bWAPP Free
  • Buggy web application providing a safe environment for security enthusiasts to practice.
• CloudGoat Free
  • Rhino Security Labs' vulnerable by design AWS deployment tool for cloud security.
• Corelan Exploit Tutorials Free
  • Classic exploit writing tutorial series covering stack overflows and advanced exploitation.
• DVWA Free
  • Deliberately vulnerable web app for security practice.
• Enigma Group Free
  • Security challenges and wargames.
• Exploit Database Free
  • Ultimate archive of exploits shellcode and security papers by Offensive Security.
• Google Gruyere Free
  • Hands-on web security lab for learning common vulnerabilities and exploits.
• Guyinatuxedo Free
  • Introduction to binary exploitation and reverse engineering with hands-on challenges.
• Hacker101 Free
  • Free web security training platform from HackerOne with videos and CTF-style exercises.
• HackerOne Free
  • Bug bounty platform where hackers can practice skills and earn rewards.
• HackThisSite Free
  • Free hacking challenges and exercises.
• Intigriti Free
  • Europe's ethical hacking and bug bounty platform for security researchers.
• Kali Linux Free
  • Free penetration testing Linux distribution.
• Kubernetes Goat Free
  • Vulnerable by design Kubernetes cluster for learning container security.
• Malware Unicorn RE101 Free
  • Reverse engineering workshop from basics to advanced malware analysis techniques.
• Metasploitable Free
  • Vulnerable Linux system for penetration testing.
• Metasploitable3 Free
  • VM with a large amount of security vulnerabilities for penetration testing practice.
• OWASP crAPI Free
  • Completely ridiculous API for learning the ten most critical API security risks.
• OWASP Juice Shop Free
  • Modern sophisticated insecure web application for comprehensive security training.
• OWASP Top 10 Free
  • Web application security awareness document.
• OWASP WebGoat Free
  • Deliberately insecure web app for learning security.
• OWASP WebGoat Free
  • Deliberately insecure web application for learning web security flaws.
• Phrack Magazine Free
  • Ezine written by and for hackers covering advanced security research and exploitation.
• PortSwigger Web Security Academy Free
  • Free web security training from Burp Suite creators.
• PortSwigger Web Security Academy Free
  • Free web security training with hands-on labs for common vulnerabilities.
• Rawsec Inventory Free
  • Open-source inventory of tools resources CTF platforms and security operating systems.
• Roppers Security Fundamentals Free
  • Free course teaching how security works in the real world with theory and defense.
• Security Shepherd Free
  • Open-source security training platform.
• The Cyberclopaedia Free
  • Open-source encyclopedia of cybersecurity covering offensive and defensive topics.
• Vulhub Free
  • Open-source collection of pre-built vulnerable Docker environments for security practice.
• WeChall Free
  • Various hacking challenges platform.
• CyberDefenders Freemium
  • Blue team training platform with real-world incident response challenges.
• Cybrary Freemium
  • Cybersecurity and IT training platform with courses.
• INE Security Freemium
  • Hands-on technical training platform offering cybersecurity courses and certifications.
• Pentest-Tools Freemium
  • Online security testing tools.
• TryHackMe Freemium
  • Guided cybersecurity learning paths from beginner to advanced.
• Offensive Security Paid
  • Industry-leading penetration testing training and certifications like OSCP.
• RangeForce Paid
  • Interactive cybersecurity training with gamified modules and simulations.
• SANS Cyber Ranges Paid
  • Professional cybersecurity training and hands-on labs.