Free CTF Challenge Platform
Practise real security skills with browser-based capture-the-flag challenges across crypto, web and forensics — with hints, scoring and walkthroughs. Free, from Neurobyte.
About this training
Capture the Flag (CTF) is how many security professionals built their skills — by solving real challenges and finding hidden 'flags'. This free, browser-based CTF platform offers challenges across cryptography, web exploitation and forensics, with hints, scoring and walkthroughs so you can learn by doing whether you're a beginner or sharpening existing skills.
Each challenge teaches a concept you can apply in real assessments, and the walkthroughs mean you're never stuck for long. It's a fun, hands-on complement to the more guided training in our hub. Work through the categories, climb the score, and build the practical problem-solving that defines good security work.
Frequently asked questions
What is a Capture the Flag (CTF)?
A CTF is a security challenge where you solve puzzles — in areas like crypto, web and forensics — to uncover a hidden 'flag' string that proves you cracked it. It's a hands-on, gamified way to learn practical security skills.
Do I need experience to start?
No. Challenges span difficulty levels and include hints and walkthroughs, so beginners can learn the ropes while experienced players push for faster solves.
Is the CTF platform free?
Yes, it's free and runs in your browser with no sign-up. Work through crypto, web and forensics challenges at your own pace.