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A curated list of CTF frameworks, libraries, resources and


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A curated list of Capture The Flag (CTF) frameworks, libraries, resources, softwares and tutorials. This list aims to help starters as well as seasoned CTF players to find everything related to CTFs at one place.


Please take a quick look at the contribution guidelines first.

If you know a tool that isn't present here, feel free to open a pull request.


It takes time to build up collection of tools used in ctf and remember them all. This repo helps to keep all these scattered tools at one place.



Tools used for creating CTF challenges


Tools used for creating Forensics challenges


Projects that can be used to host a CTF

  • CTFd - Platform to host jeopardy style CTFs from ISISLab, NYU Tandon
  • FBCTF - Platform to host Capture the Flag competitions from Facebook
  • HackTheArch - CTF scoring platform
  • Mellivora - A CTF engine written in PHP
  • NightShade - A simple security CTF framework
  • OpenCTF - CTF in a box. Minimal setup required
  • PicoCTF Platform 2 - A genericized version of picoCTF 2014 that can be easily adapted to host CTF or programming competitions.
  • PyChallFactory - Small framework to create/manage/package jeopardy CTF challenges
  • RootTheBox - A Game of Hackers (CTF Scoreboard & Game Manager)
  • Scorebot - Platform for CTFs by Legitbs (Defcon)
  • SecGen - Security Scenario Generator. Creates randomly vulnerable virtual machines


Tools used to create stego challenges

Check solve section for steganography.


Tools used for creating Web challenges

JavaScript Obfustcators


Tools used for solving CTF challenges


Tools used for performing various kinds of attacks

  • Bettercap - Framework to perform MITM (Man in the Middle) attacks.
  • Layer 2 attacks - Attack various protocols on layer 2


Tools used for solving Crypto challenges

  • FeatherDuster - An automated, modular cryptanalysis tool
  • Hash Extender - A utility tool for performing hash length extension attacks
  • PkCrack - A tool for Breaking PkZip-encryption
  • RSACTFTool - A tool for recovering RSA private key with various attack
  • RSATool - Generate private key with knowledge of p and q
  • XORTool - A tool to analyze multi-byte xor cipher


Tools used for various kind of bruteforcing (passwords etc.)

  • Hashcat - Password Cracker
  • John The Jumbo - Community enhanced version of John the Ripper
  • John The Ripper - Password Cracker
  • Nozzlr - Nozzlr is a bruteforce framework, trully modular and script-friendly.
  • Ophcrack - Windows password cracker based on rainbow tables.
  • Patator - Patator is a multi-purpose brute-forcer, with a modular design.


Tools used for solving Exploits challenges

  • DLLInjector - Inject dlls in processes
  • libformatstr - Simplify format string exploitation.
  • Metasploit - Penetration testing software
  • one_gadget - A tool to find the one gadget execve('/bin/sh', NULL, NULL) call
    • gem install one_gadget
  • Pwntools - CTF Framework for writing exploits
  • Qira - QEMU Interactive Runtime Analyser
  • ROP Gadget - Framework for ROP exploitation
  • V0lt - Security CTF Toolkit


Tools used for solving Forensics challenges

  • Aircrack-Ng - Crack 802.11 WEP and WPA-PSK keys
    • apt-get install aircrack-ng
  • Audacity - Analyze sound files (mp3, m4a, whatever)
    • apt-get install audacity
  • Bkhive and Samdump2 - Dump SYSTEM and SAM files
    • apt-get install samdump2 bkhive
  • CFF Explorer - PE Editor
  • Creddump - Dump windows credentials
  • DVCS Ripper - Rips web accessible (distributed) version control systems
  • Exif Tool - Read, write and edit file metadata
  • Extundelete - Used for recovering lost data from mountable images
  • Fibratus - Tool for exploration and tracing of the Windows kernel
  • Foremost - Extract particular kind of files using headers
    • apt-get install foremost
  • Fsck.ext4 - Used to fix corrupt filesystems
  • Malzilla - Malware hunting tool
  • NetworkMiner - Network Forensic Analysis Tool
  • PDF Streams Inflater - Find and extract zlib files compressed in PDF files
  • ResourcesExtract - Extract various filetypes from exes
  • Shellbags - Investigate NT_USER.dat files
  • UsbForensics - Contains many tools for usb forensics
  • Volatility - To investigate memory dumps

Registry Viewers


Tools used for solving Networking challenges

  • Bro - An open-source network security monitor.
  • Masscan - Mass IP port scanner, TCP port scanner.
  • Monit - A linux tool to check a host on the network (and other non-network activities).
  • Nipe - Nipe is a script to make Tor Network your default gateway.
  • Nmap - An open source utility for network discovery and security auditing.
  • Wireshark - Analyze the network dumps.
    • apt-get install wireshark
  • Zmap - An open-source network scanner.


Tools used for solving Reversing challenges

  • Androguard - Reverse engineer Android applications
  • Angr - platform-agnostic binary analysis framework
  • Apk2Gold - Yet another Android decompiler
  • ApkTool - Android Decompiler
  • Barf - Binary Analysis and Reverse engineering Framework
  • Binary Ninja - Binary analysis framework
  • BinUtils - Collection of binary tools
  • BinWalk - Analyze, reverse engineer, and extract firmware images.
  • Boomerang - Decompile x86 binaries to C
  • ctf_import – run basic functions from stripped binaries cross platform
  • Frida - Dynamic Code Injection
  • GDB - The GNU project debugger
  • GEF - GDB plugin
  • Hopper - Reverse engineering tool (disassembler) for OSX and Linux
  • IDA Pro - Most used Reversing software
  • Jadx - Decompile Android files
  • Java Decompilers - An online decompiler for Java and Android APKs
  • Krakatau - Java decompiler and disassembler
  • Objection - Runtime Mobile Exploration
  • PEDA - GDB plugin (only python2.7)
  • Pin A dynamic binary instrumentaion tool by Intel
  • Plasma - An interactive disassembler for x86/ARM/MIPS which can generate indented pseudo-code with colored syntax.
  • Pwndbg - A GDB plugin that provides a suite of utilities to hack around GDB easily.
  • radare2 - A portable reversing framework
  • Triton - Dynamic Binary Analysis (DBA) framework
  • Uncompyle - Decompile Python 2.7 binaries (.pyc)
  • WinDbg - Windows debugger distributed by Microsoft
  • Xocopy - Program that can copy executables with execute, but no read permission
  • Z3 - a theorem prover from Microsoft Research

JavaScript Deobfuscators

  • Detox - A Javascript malware analysis tool
  • Revelo - Analyze obfuscated Javascript code

SWF Analyzers

  • RABCDAsm - Collection of utilities including an ActionScript 3 assembler/disassembler.
  • Swftools - Collection of utilities to work with SWF files
  • Xxxswf - A Python script for analyzing Flash files.


Various kind of useful services available around the internet

  • CSWSH - Cross-Site WebSocket Hijacking Tester
  • Request Bin - Lets you inspect http requests to a particular url


Tools used for solving Steganography challenges

  • Convert - Convert images b/w formats and apply filters
  • Exif - Shows EXIF information in JPEG files
  • Exiftool - Read and write meta information in files
  • Exiv2 - Image metadata manipulation tool
  • ImageMagick - Tool for manipulating images
  • Outguess - Universal steganographic tool
  • Pngtools - For various analysis related to PNGs
    • apt-get install pngtools
  • SmartDeblur - Used to deblur and fix defocused images
  • Steganabara - Tool for stegano analysis written in Java
  • Stegbreak - Launches brute-force dictionary attacks on JPG image
  • StegCracker - Steganography brute-force utility to uncover hidden data inside files
  • stegextract - Detect hidden files and text in images
  • Steghide - Hide data in various kind of images
  • Stegsolve - Apply various steganography techniques to images
  • Zsteg - PNG/BMP analysis


Tools used for solving Web challenges

  • BurpSuite - A graphical tool to testing website security.
  • Commix - Automated All-in-One OS Command Injection and Exploitation Tool.
  • Hackbar - Firefox addon for easy web exploitation
  • OWASP ZAP - Intercepting proxy to replay, debug, and fuzz HTTP requests and responses
  • Postman - Add on for chrome for debugging network requests
  • Raccoon - A high performance offensive security tool for reconnaissance and vulnerability scanning
  • SQLMap - Automatic SQL injection and database takeover tooli
  • W3af - Web Application Attack and Audit Framework.
  • XSSer - Automated XSS testor


Where to discover about CTF

Operating Systems

Penetration testing and security lab Operating Systems

Malware analysts and reverse-engineering

Starter Packs

Collections of installer scripts, useful tools

  • CTF Tools - Collection of setup scripts to install various security research tools.
  • LazyKali - A 2016 refresh of LazyKali which simplifies install of tools and configuration.


Tutorials to learn how to play CTFs


Always online CTFs

  • Backdoor - Security Platform by SDSLabs.
  • Crackmes - Reverse Engineering Challenges
  • - CTF All the time
  • Exploit Exercises - Variety of VMs to learn variety of computer security issues.
  • Gracker - Binary challenges having a slow learning curve, and write-ups for each level.
  • Hack The Box - Weekly CTFs for all types of security enthusiasts.
  • Hack This Site - Training ground for hackers.
  • Hacking-Lab - Ethical hacking, computer network and security challenge platform.
  • Hone Your Ninja Skills - Web challenges starting from basic ones.
  • IO - Wargame for binary challenges.
  • Microcorruption - Embedded security CTF
  • Over The Wire - Wargame maintained by OvertheWire Community
  • - Pwn Game
  • - Binary wargame
  • - Binary Exploitation Wargame
  • - Reversing challenge
  • Ringzer0Team - Ringzer0 Team Online CTF
  • Root-Me - Hacking and Information Security learning platform.
  • ROP Wargames - ROP Wargames
  • SmashTheStack - A variety of wargames maintained by the SmashTheStack Community.
  • VulnHub - VM-based for practical in digital security, computer application & network administration.
  • W3Challs - A penetration testing training platform, which offers various computer challenges, in various categories.
  • WebHacking - Hacking challenges for web.
  • WeChall - Always online challenge site.
  • WTHack OnlineCTF - CTF Practice platform for every level of cyber security enthusiasts.

Self-hosted CTFs


Various general websites about and on ctf


Various Wikis available for learning about CTFs

Writeups Collections

Collections of CTF write-ups


CC0 :)

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