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CTF Resources

Top CTF Platforms
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PicoCTF

  • Best beginner CTF, also its free!

National Cyber League

  • Paid beginner CTF

247CTF

  • 24/7 CTF Site

CTFtime.org

Others
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HTB CTF

  • Hack The Box CTFs

echoCTF.com

  • ICS CTF

CryptoHack

  • Cryptography challenges

Google CTF

  • Annual Google CTF event

The Cryptopals Crypto Challenges

  • Practical crypto challenges

W3Challs Hacking Challenges

  • CTF Challenges

WeChall

  • CTF Challenges and links to other CTFs

PWN.TN

  • CTF Challenges

CTF @ UBC

  • University CTF team site

Command Challenge!

  • Command line CTF

Storm CTF

  • Dead link

BelkaCTF

  • Digital forensics CTF

Advent of Code

  • Programming CTF

MetaCTF

  • CTF Platform

HackingHub - Ethical Hacking Training

pwn.college

  • Educational CTF

Wizer CTF

  • Vulnerable Code CTF

KC7 - The cyber mystery game

  • Coding CTF

ECTF - Embedded CTF

  • Embedded CTF

Codewars

  • Coding CTF

Dreadnode