About the platform

A practical Capture The Flag environment built by Supraja Technologies.

Learn security by doing

Supraja Technologies CTF gives participants real files, traffic captures and web targets to investigate. Each level introduces a different discipline, and every flag you find confirms a skill you have practiced.

There are six levels, so beginners can start at Level 1 and keep progressing.

Two interface versions

Every level is available as Version 1 and Version 2, so you can use the interface you prefer.

Flag-based scoring

Find the hidden flag in each challenge and submit it to complete the level.