Join a free
Capture The Flag
hacking environment

Ready to hack?

Capture The Flag (CTF) competitions challenge you to solve problems and earn flags.

To solve a challenge, you need to hack your way to the flag.

Most competitions are only online for a few days. The 247CTF is a continuous learning environment.

Learn by doing!

Challenges are directly accessible from the platform; no VPN or setup required.

Rather than sharing, you control your own challenges - start, stop and restart at any time.

New challenges are added monthly, to enable you to continuously learn, hack and improve.



Total Challenges


Total Users


Total Solves


Monthly Solves
Top Players
pottm 13,065 points
jusb3 13,065 points
Peace-Maker 12,800 points
blablub 12,195 points
practicaltacocat 12,150 points
Latest Challenges
REV140 23 solves
Web255 28 solves
MISC200 13 solves
Pwn265 7 solves
MISC200 30 solves

Player Activity