Coursera / edX - High School CS Courses
University-level CS courses from Stanford, MIT, Harvard available for free online. Topics include algorithms, AI, web development, and cybersecurity.
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TryHackMe
Gamified cybersecurity learning platform with hands-on labs and challenges. Learn penetration testing, web exploitation, and network security through interactive rooms.
American Computer Science League (ACSL)
Team-based competition with programming challenges and written tests covering Boolean algebra, digital electronics, algorithms, and data structures. Four divisions based on skill level.
Cisco Networking Academy - Cybersecurity Courses
Free online courses (Introduction to Cybersecurity, Cybersecurity Essentials) with hands-on labs and industry-recognized certifications.
FreeCodeCamp Certifications
Self-paced online platform offering free certifications in web development, data analysis, machine learning, and more. Great for building portfolio projects.
Google Code-in / Code Next
Google's programs for high school students to contribute to open-source projects and learn computer science fundamentals.
National Cyber League (NCL) High School Division
Biannual competition with real-world challenges: forensic analysis, packet capture analysis, password cracking, and ransomware recovery. Performance-based scouting reports provided.