TryHackMe

TryHackMe is an interactive cybersecurity platform with a free tier featuring hands-on labs and guided learning paths. You get access to hacking challenges, defensive security modules, and purple-team scenarios where you practice both offensive and defensive skills. Most labs run in your browser, so you don't need to set up complex local tools or environments.

Best for people learning by doing rather than through lecture-style courses. The free tier gives you solid access if you're exploring cybersecurity as a career path or hobby, though premium opens more advanced content and professional certifications you'd need for job applications.