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$ root@sctf1337

Become Real Hacker With Capture The Flag.

SCTF is a Jeopardy-style Capture The Flag platform for anyone learning cyber security — pick a category, break the challenge, grab the flag, climb the board. No slides, just shells.

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Live challenge
root@sctf: ~/atmin wifei

$ nc chall.sctf 1337

[+] connecting to target... ok

[+] flag captured: SCTF{h3ll0_h4ck3r} 

score +250 pts

// about the platform

What is
SCTF?

SCTF is a Jeopardy-style Capture The Flag platform: challenges are grouped into fixed categories, each worth a set number of points, and solved independently in any order you like. Break a challenge, find the hidden flag, submit it, and watch your score climb.

Jeopardy

Challenge format

Flag

Proof you solved it

Score

Points on the board

Mychallenge

Make your own challenge

Why SCTF?

Hands-on Learning

No lectures, no fluff. Every concept only clicks once you've broken it yourself.

Jeopardy CTF

Pick any category, any order. Points scale with difficulty, not with speed alone.

Leaderboard

Live ranking that updates the moment a flag is accepted. See where you stand.

Progress

Track which categories you've conquered and which ones are still undefeated.

// community

USED ​​BY180++ USERS

Join the growing community and prove your skills.

180++

active users

// categories

Challenge Categories

SCTF{web}

Web Exploitation

SQLi dark:text-white, XSS, auth bypass and the logic bugs hiding in plain sight.

SCTF{crypto}

Cryptography

From classical ciphers to breaking weak modern implementations.

SCTF{osint}

OSINT

Digital footprints — find what was never meant to be found.

SCTF{forensics}

Forensics

Dig through files, memory and packets for the artifact that matters.

SCTF{-}

Other

Lets come to see other challenges...

// the loop

How It Works

01

Create Account

Sign up in seconds. No résumé required.

02

Choose Challenge

Browse categories, pick what looks breakable.

03

Solve Challenge

Poke, probe, exploit. Gets flag.

04

Submit Flag

Paste the flag, hit submit, hold your breath.

05

Earn Score

Points land instantly, leaderboard updates live.

// preview

Challenge Preview

See all categories →
affalximam affalximam
Unsolved

stalking cicada

Masih Normal Inimah
Kriptografi Osint
Points: 50 Aug 10
affalximam affalximam
Unsolved

ga ngasih doksli 🫵🏻😩

Noob
Forensics
Points: 50 Jul 21
affalximam affalximam
Unsolved

Sistem angkasa

Calon Heker Darknet
Web Security
Points: 299 Jul 17

// standings

Leaderboard Preview

Leaderboard Preview

// platform features

Platform Features

Authentication

Sign up with email or Google OAuth, login securely, and manage your account with password reset and profile updates.

Challenge System

Browse, search, and filter challenges by category or level. View detailed challenge information and submit flags for points.

Flag Submission

Submit flags for instant validation. Correct answers add points and mark challenges as solved. Invalid flags trigger error messages.

User Management

View user profiles, list all users, and search for specific users. Track solved challenges and challenge creation history.

Leaderboard & Scoring

Live ranking system showing top scorers. Points update in real-time when flags are submitted correctly.

My Challenges

Create, edit, and manage your own challenges. Track submission status: On Submission, Published, Revision, or Rejected.

Bookmark & Report

Save favorite challenges with bookmarks. Report issues on challenges for admin review.

// one more step

Ready to Start Your
CTF Journey?

Create your account, pick your first challenge, and see your name climb the board.

Start Learning →