- tryhackme.com β Guided cyber labs, gamified learning paths.
- vulnhub.com β Download vulnerable VMs for offline testing.
- root-me.org β Challenges in web, reversing, crypto, etc.
- overthewire.org β Classic Linux wargames like Bandit.
- picoctf.com β CTFs for students & beginners by CMU.
- pentesterlab.com β Web security labs with real-world scenarios.
- capturetheflag.withgoogle.com β Googleβs official CTF platform.
- cmdchallenge.com β Interactive terminal-based puzzles.
- hackthebox.com β Real-world penetration testing labs.
- capturetheflag.com.br β Brazilian CTFs & security challenges.
- ctf.komodosec.com β Komodoβs platform for CTF challenges.
- hackaflag.com.br β Brazilian CTF academy for beginners.
- attackdefense.com β Red & blue team lab simulations.
- ctf.hacker101.com β Web hacking challenges by HackerOne.
Practice legally. Learn ethically.