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 11,570 points
jusb3 11,570 points
Peace-Maker 11,570 points
blablub 10,990 points
nyz 10,020 points
Latest Challenges
MISC150 0 solves
REV290 4 solves
REV80 12 solves
Pwn330 8 solves
NET145 21 solves

Player Activity