Practice cybersecurity skills, penetration testing, and CTF challenges.
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Free Resources (34)
- 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.