picoCTF 2025 is a 10-day competitive CTF open to anyone, with prizes available to eligible teams.
picoCTF gamifies learning hacking with capture-the-flag puzzles created by trusted computer security and privacy experts atCarnegie Mellon University.
Gain knowledge about introductory through advanced level cybersecurity principles in our noncompetitive features the picoGym and the picoPrimer.
Build your CTF skills, help yourself advance your personal best score, and prepare for the big show using our mini Competitions to practice.
Join the world’s largest free hacking competition where you can compete for cash prizes, specialty awards, and a chance to visit Carnegie Mellon University.
See yourself in a career in cybersecurity. Cybersecurity skills are in high demand in the workforce and the need grows as computers continue to be an integral part of everyday life.
Monitor student or group progress when using the Classroom feature. Get real-time analytics on your team’s progress including the timestamp of the last challenge solved.
Don’t be afraid to join in the fun and play at your own pace to test your cybersecurity knowledge or learn a new skill. The cybersecurity topics in picoCTF include introductory level concepts progressing to mastery level.
picoGym is a noncompetitive practice space where you can explore and solve challenges from previously released picoCTF competitions, find fresh never before revealed challenges, and build a knowledge base of cybersecurity skills in a safe environment.
Whether you are a cybersecurity professional, competitive hacker or new to CTFs you will find interesting challenges in the picoGym that you can solve at your own pace. Team picoCTF will regularly update this challenge repository so visit the picoGym often.
Practice picoGymThis is a 10-day long timed CTF competition. Challenges increase in difficulty as players progress. All are welcome to join, but this CTF is recommended for players with some programming knowledge. Players with no previous programming or CTF experience should start with our noncompetitivepicoGym challenges.
Sign up for a picoCTF.org account at anytime.
Open to everyone:
picoCTF would like to thank our sponsors for providing funds for continued development.
picoCTF relies on generous donations to run. So far we've reached over 700,000 learners across the world.