Hack real machines.
Right in your browser.
Learn cybersecurity one short lesson at a time, then use it on a live target. No setup. Just a terminal and a flag to capture.
₹0, no card. 5 lab hours every month. Runs in your browser.
Where are you today?
Pick one to start. You can switch at any time. Everything shares one account and one rank.
Guided paths
PathsStart from zero. Each stage builds on the last, with a lab in every module. Finish with a verified certificate.
- Networking and systemsStage I
- Web and Linux securityStage II
- Red team and cloudStage III
Start free. Upgrade when you want more.
Sign up with Google, GitHub or email. No card needed. Paid plans add more lab time and every challenge.
- Machine lab time5 h / month
- ChallengesFree challenges
- Learning pathsFree paths
- SeasonsLimited-time access
- Leaderboard and communityIncluded
- SetupNone, runs in your browser
Training a cohort? Accounts for teams and universities. Talk to our team
Good questions.
Something else? Ask our team.
Can I start with no cybersecurity experience?
Yes. Start with a beginner path. It builds your networking, systems and security foundations, with a practical task in every module.
Do I need to install anything?
No. Challenges, lessons and the attack box run in your browser. Prefer your own tools? Machines and Red Team labs also offer a VPN connection.
Can I cancel a paid plan at any time?
Yes. Start on the free plan and upgrade only when you need more. You can cancel a paid plan at any time from your billing page. Checkout is through Razorpay.
Can my team or university use CSEMA?
Yes. Organisation accounts support learning paths, learner progress and certificates. Contact our team to discuss your cohort.
Your first flag is one lesson away.
Join free. Pick a path or a machine. Start building proof that you can do the job.
₹0, no card. Google or GitHub sign-up.