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https://github.com/devploit/awesome-ctf-resources

A list of Capture The Flag (CTF) frameworks, libraries, resources and software for started/experienced CTF players 🚩
https://github.com/devploit/awesome-ctf-resources

List: awesome-ctf-resources

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A list of Capture The Flag (CTF) frameworks, libraries, resources and software for started/experienced CTF players 🚩

Lists

README 

        
# Awesome CTF resources [![contributions welcome](https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat)](https://github.com/dwyl/esta/issues)



A list of [Capture The Flag](https://en.wikipedia.org/wiki/Capture_the_flag#Computer_security) (CTF) frameworks, libraries, resources and software for started/experienced CTF players 🚩 



Any contribution is welcome, send me a PR! ❤️



*-The software and resources collected do not belong to me and have been compiled for educational purposes only-*










## Contents



 - [Create](#0x00-create)

    - [Platforms](#platforms)

    - [Forensics](#forensics)

    - [Steganography](#steganography)

    - [Web](#web)



 - [Solve](#0x01-solve)

    - [Cryptography](#cryptography)

    - [Exploiting / Pwn](#exploiting--pwn)

    - [Forensics](#forensics-1)

    - [Misc](#misc)

    - [Reversing](#reversing)

    - [Steganography](#steganography-1)

    - [Web](#web-1)



 - [Resources](#0x02-resources)

    - [Online Platforms](#online-platforms)

    - [Collaborative Tools](#collaborative-tools)

    - [Writeups Repositories](#writeups-repositories)

    - [Courses](#courses)



 - [Bibliography](#0x03-bibliography)



# 0x00. Create



*Tools used for creating CTF challenges*



## Platforms



*Frameworks that can be used to host a CTF*



 - [CTFd](https://github.com/CTFd/CTFd) - Platform to host jeopardy style CTFs.

 - [FBCTF](https://github.com/facebookarchive/fbctf) - Facebook CTF platform to host Jeopardy and "King of the Hill" CTF competitions.

 - [HackTheArch](https://github.com/mcpa-stlouis/hack-the-arch) - Scoring server for CTF competitions.

 - [kCTF](https://github.com/google/kctf) - Kubernetes-based infrastructure for CTF competitions.

 - [LibreCTF](https://github.com/easyctf/librectf) - CTF platform from EasyCTF.

 - [Mellivora](https://github.com/Nakiami/mellivora) - CTF engine written in PHP.

 - [NightShade](https://github.com/UnrealAkama/NightShade) - Simple CTF framework.

 - [picoCTF](https://github.com/picoCTF/picoCTF) - Infrastructure used to run picoCTF.

 - [rCTF](https://github.com/redpwn/rctf) - CTF platform maintained by the [redpwn](https://github.com/redpwn/rctf) CTF team.

 - [RootTheBox](https://github.com/moloch--/RootTheBox) - CTF scoring engine for wargames.

 - [ImaginaryCTF](https://github.com/Et3rnos/ImaginaryCTF) - Platform to host CTFs.



## Forensics



*Tools used to create Forensics challenges*



 - [Belkasoft RAM Capturer](https://belkasoft.com/ram-capturer) - Volatile Memory Acquisition Tool.

 - [Dnscat2](https://github.com/iagox86/dnscat2) - Hosts communication through DNS.

 - [Magnet AXIOM 2.0](https://www.magnetforensics.com/resources/magnet-axiom-2-0-memory-analysis/) - Artifact-centric DFIR tool.

 - [Registry Dumper](http://www.kahusecurity.com/posts/registry_dumper_find_and_dump_hidden_registry_keys.html) - Tool to dump Windows Registry.



## Steganography



*Tools used to create Stego challenges*



Check [solve section for steganography](#steganography-1).



## Web



*Tools used to create Web challenges*



 - [Metasploit JavaScript Obfuscator](https://github.com/rapid7/metasploit-framework/wiki/How-to-obfuscate-JavaScript-in-Metasploit) - How to obfuscate JavaScript in Metasploit.



# 0x01. Solve



## Cryptography



*Tools used for solving Crypto challenges*



 - [Base65536](https://github.com/qntm/base65536) - Unicode's answer to Base64.

 - [Braille Translator](https://www.branah.com/braille-translator) - Translate from braille to text.

 - [Ciphey](https://github.com/Ciphey/Ciphey) - Tool to automatically decrypt encryptions without knowing the key or cipher, decode encodings, and crack hashes.

 - [CyberChef](https://gchq.github.io/CyberChef/) - A web app for encryption, encoding, compression and data analysis.

 - [Cryptii](https://cryptii.com/) - Modular conversion, encoding and encryption online.

 - [dCode.fr](https://www.dcode.fr/tools-list#cryptography) - Solvers for Crypto, Maths and Encodings online.

 - [Decodify](https://github.com/s0md3v/Decodify) - Detect and decode encoded strings, recursively.

 - [Enigma Machine](https://summersidemakerspace.ca/projects/enigma-machine/) - Universal Enigma Machine Simulator.

 - [FeatherDuster](https://github.com/nccgroup/featherduster) - An automated, modular cryptanalysis tool.

 - [Galois](http://web.eecs.utk.edu/~jplank/plank/papers/CS-07-593/) - A fast galois field arithmetic library/toolkit.

 - [HashExtender](https://github.com/iagox86/hash_extender) - Tool for performing hash length extension attacks.

 - [Hash-identifier](https://code.google.com/p/hash-identifier/source/checkout) - Simple hash algorithm identifier.

 - [padding-oracle-attacker](https://github.com/KishanBagaria/padding-oracle-attacker) - CLI tool and library to execute padding oracle attacks easily.

 - [PadBuster](https://github.com/AonCyberLabs/PadBuster) - Automated script for performing Padding Oracle attacks.

 - [PEMCrack](https://github.com/robertdavidgraham/pemcrack) - Cracks SSL PEM files that hold encrypted private keys. Brute forces or dictionary cracks.

 - [PKCrack](https://www.unix-ag.uni-kl.de/~conrad/krypto/pkcrack.html) - PkZip encryption cracker.

 - [Polybius Square Cipher](https://www.braingle.com/brainteasers/codes/polybius.php) - Table that allows someone to translate letters into numbers.

 - [Quipqiup](https://quipqiup.com/) - Automated cryptogram solver.

 - [RsaCtfTool](https://github.com/RsaCtfTool/RsaCtfTool) - RSA multi attacks tool.

 - [RSATool](https://github.com/ius/rsatool) - Tool to to calculate RSA and RSA-CRT parameter.

 - [Rumkin Cipher Tools](http://rumkin.com/tools/cipher/) - Collection of ciphhers/encoders tools.

 - [Vigenere Solver](https://www.guballa.de/vigenere-solver) - Online tool that breaks Vigenère ciphers without knowing the key.

 - [XOR Cracker](https://wiremask.eu/tools/xor-cracker/) - Online XOR decryption tool able to guess the key length and the cipher key to decrypt any file.

 - [XORTool](https://github.com/hellman/xortool) - A tool to analyze multi-byte xor cipher.

 - [yagu](https://sourceforge.net/projects/yafu/) - Automated integer factorization.

 - [Crackstation](https://crackstation.net/) - Hash cracker (database).

 - [Online Encyclopedia of Integer Sequences](https://oeis.org/) - OEIS: The On-Line Encyclopedia of Integer Sequences



## Exploiting / Pwn



*Tools used for solving Pwn challenges*



 - [afl](https://lcamtuf.coredump.cx/afl/) - Security-oriented fuzzer.

 - [honggfuzz](https://github.com/google/honggfuzz) - Security oriented software fuzzer. Supports evolutionary, feedback-driven fuzzing based on code coverage.

 - [libformatstr](https://github.com/hellman/libformatstr) - Simplify format string exploitation.

 - [One_gadget](https://github.com/david942j/one_gadget) - Tool for finding one gadget RCE.

 - [Pwntools](https://github.com/Gallopsled/pwntools) - CTF framework for writing exploits.

 - [ROPgadget](https://github.com/JonathanSalwan/ROPgadget) - Framework for ROP exploitation.

 - [Ropper](https://github.com/sashs/Ropper) - Display information about files in different file formats and find gadgets to build rop chains for different architectures.

 - [Shellcodes Database](http://shell-storm.org/shellcode/) - A massive shellcodes database.



## Forensics



*Tools used for solving Forensics challenges*



 - [A-Packets](https://apackets.com/) - Effortless PCAP File Analysis in Your Browser.

 - [Autopsy](https://www.autopsy.com/) - End-to-end open source digital forensics platform.

 - [Binwalk](https://github.com/devttys0/binwalk) - Firmware Analysis Tool.

 - [Bulk-extractor](https://github.com/simsong/bulk_extractor) - High-performance digital forensics exploitation tool.

 - [Bkhive & samdump2](https://www.kali.org/tools/samdump2/) - Dump SYSTEM and SAM files.

 - [ChromeCacheView](https://www.nirsoft.net/utils/chrome_cache_view.html) - Small utility that reads the cache folder of Google Chrome Web browser, and displays the list of all files currently stored in the cache.

 - [Creddump](https://github.com/moyix/creddump) - Dump Windows credentials.

 - [Exiftool](https://exiftool.org/) - Read, write and edit file metadata.

 - [Extundelete](http://extundelete.sourceforge.net/) - Utility that can recover deleted files from an ext3 or ext4 partition.

 - [firmware-mod-kit](https://code.google.com/archive/p/firmware-mod-kit/) - Modify firmware images without recompiling.

 - [Foremost](http://foremost.sourceforge.net/) - Console program to recover files based on their headers, footers, and internal data structures.

 - [Forensic Toolkit](https://www.exterro.com/forensic-toolkit) - It scans a hard drive looking for various information. It can, potentially locate deleted emails and scan a disk for text strings to use them as a password dictionary to crack encryption.

 - [Forensically](https://29a.ch/photo-forensics/#forensic-magnifier) - Free online tool to analysis image this tool has many features.

 - [MZCacheView](https://www.nirsoft.net/utils/mozilla_cache_viewer.html) - Small utility that reads the cache folder of Firefox/Mozilla/Netscape Web browsers, and displays the list of all files currently stored in the cache.

 - [NetworkMiner](https://www.netresec.com/index.ashx?page=NetworkMiner)  Network Forensic Analysis Tool (NFAT).

 - [OfflineRegistryView](https://www.nirsoft.net/utils/offline_registry_view.html) - Simple tool for Windows that allows you to read offline Registry files from external drive.

 - [photorec](https://www.cgsecurity.org/wiki/PhotoRec) - File data recovery software designed to recover lost files including video, documents and archives from hard disks, CD-ROMs, and lost pictures (thus the Photo Recovery name) from digital camera memory.

 - [Registry Viewer](https://accessdata.com/product-download/registry-viewer-2-0-0) - Tool to view Windows registers.

 - [Scalpel](https://github.com/sleuthkit/scalpel) - Open source data carving tool.

 - [The Sleuth Kit](https://www.sleuthkit.org/) - Collection of command line tools and a C library that allows you to analyze disk images and recover files from them.

 - [USBRip](https://github.com/snovvcrash/usbrip) - Simple CLI forensics tool for tracking USB device artifacts (history of USB events) on GNU/Linux.

 - [Volatility](https://github.com/volatilityfoundation/volatility) - An advanced memory forensics framework.

 - [Wireshark](https://www.wireshark.org/) - Tool to analyze pcap or pcapng files.

 - [X-Ways](https://www.x-ways.net/forensics/index-m.html) - Advanced work environment for computer forensic examiners.



## Misc



*Tools used for solving Misc challenges*



 - [boofuzz](https://github.com/jtpereyda/boofuzz) - Network Protocol Fuzzing for Humans.

 - [Veles](https://codisec.com/veles/) - Binary data analysis and visualization tool.



**Bruteforcers:**



 - [changeme](https://github.com/ztgrace/changeme) - A default credential scanner.

 - [Hashcat](https://hashcat.net/hashcat/) - Advanced Password Recovery.

 - [Hydra](https://www.kali.org/tools/hydra/) - Parallelized login cracker which supports numerous protocols to attack.

 - [John the Ripper](https://www.openwall.com/john/) - Open Source password security auditing and password recovery.

 - [jwt_tool](https://github.com/ticarpi/jwt_tool) - A toolkit for testing, tweaking and cracking JSON Web Tokens.

 - [Ophcrack](https://ophcrack.sourceforge.io/) - Free Windows password cracker based on rainbow tables.

 - [Patator](https://github.com/lanjelot/patator) - Multi-purpose brute-forcer, with a modular design and a flexible usage.

 - [Turbo Intruder](https://portswigger.net/bappstore/9abaa233088242e8be252cd4ff534988) - Burp Suite extension for sending large numbers of HTTP requests and analyzing the results.



**Esoteric Languages:**



 - [Brainfuck](https://copy.sh/brainfuck/) - Brainfuck esoteric programming language IDE.

 - [COW](https://frank-buss.de/cow.html) - It is a Brainfuck variant designed humorously with Bovinae in mind.

 - [Malbolge](http://www.malbolge.doleczek.pl/) - Malbolge esoteric programming language solver.

 - [Ook!](https://www.dcode.fr/ook-language) - Tool for decoding / encoding in Ook!

 - [Piet](https://www.bertnase.de/npiet/npiet-execute.php) - Piet programming language compiler.

 - [Rockstar](https://codewithrockstar.com/online) - A language intended to look like song lyrics.

 - [Try It Online](https://tio.run/) - An online tool that has a ton of Esoteric language interpreters.



**Sandboxes:**



 - [Any.run](https://any.run/) - Interactive malware hunting service.

 - [Intezer Analyze](https://analyze.intezer.com/) - Malware analysis platform.

 - [Triage](https://tria.ge/) - State-of-the-art malware analysis sandbox designed for cross-platform support.



## Reversing



*Tools used for solving Reversing challenges*



 - [Androguard](https://github.com/androguard/androguard) - Androguard is a full python tool to play with Android files.

 - [Angr](https://github.com/angr/angr) - A powerful and user-friendly binary analysis platform.

 - [Apk2gold](https://github.com/lxdvs/apk2gold) - CLI tool for decompiling Android apps to Java.

 - [ApkTool](https://ibotpeaches.github.io/Apktool/) - A tool for reverse engineering 3rd party, closed, binary Android apps.

 - [Binary Ninja](https://binary.ninja/) - Binary Analysis Framework.

 - [BinUtils](https://www.gnu.org/software/binutils/binutils.html) - Collection of binary tools.

 - [CTF_import](https://github.com/sciencemanx/ctf_import) - Run basic functions from stripped binaries cross platform.

 - [Compiler Explorer](https://godbolt.org/) - Online compiler tool.

 - [CWE_checker](https://github.com/fkie-cad/cwe_checker) - Finds vulnerable patterns in binary executables.

 - [Demovfuscator](https://github.com/kirschju/demovfuscator) - A work-in-progress deobfuscator for movfuscated binaries.

 - [Disassembler.io](https://onlinedisassembler.com/static/home/index.html) - Disassemble On Demand. 

A lightweight, online service for when you don’t have the time, resources, or requirements to use a heavier-weight alternative.

 - [dnSpy](https://github.com/dnSpy/dnSpy) - .NET debugger and assembly editor.

 - [EasyPythonDecompiler](https://sourceforge.net/projects/easypythondecompiler/) - A small .exe GUI application that will "decompile" Python bytecode, often seen in .pyc extension.

 - [Frida](https://github.com/frida/) - Dynamic instrumentation toolkit for developers, reverse-engineers, and security researchers.

 - [GDB](https://www.gnu.org/software/gdb/) - The GNU Project debugger.

 - [GEF](https://github.com/hugsy/gef) - A modern experience for GDB with advanced debugging features for exploit developers & reverse engineers.

 - [Ghidra](https://ghidra-sre.org/) - A software reverse engineering (SRE) suite of tools developed by NSA.

 - [Hopper](https://www.hopperapp.com/) - Reverse engineering tool (disassembler) for OSX and Linux.

 - [IDA Pro](https://hex-rays.com/ida-pro/) - Most used Reversing software.

 - [Jadx](https://github.com/skylot/jadx) - Command line and GUI tools for producing Java source code from Android Dex and Apk files.

 - [Java Decompilers](http://www.javadecompilers.com/) - An online decompiler for Java and Android APKs.

 - [JSDetox](https://github.com/svent/jsdetox) - A JavaScript malware analysis tool.

 - [miasm](https://github.com/cea-sec/miasm) - Reverse engineering framework in Python.

 - [Objection](https://github.com/sensepost/objection) - Runtime mobile exploration.

 - [Online Assembler/Disassembler](http://shell-storm.org/online/Online-Assembler-and-Disassembler/) - Online wrappers around the Keystone and Capstone projects.

 - [PEDA](https://github.com/longld/peda) - Python Exploit Development Assistance for GDB.

 - [PEfile](https://github.com/erocarrera/pefile) - Python module to read and work with PE (Portable Executable) files.

 - [Pwndbg](https://github.com/pwndbg/pwndbg) - Exploit Development and Reverse Engineering with GDB Made Easy.

 - [radare2](https://github.com/radareorg/radare2) - UNIX-like reverse engineering framework and command-line toolset.

 - [Rizin](https://github.com/rizinorg/rizin) - Rizin is a fork of the radare2 reverse engineering framework with a focus on usability, working features and code cleanliness.

 - [Uncompyle](https://github.com/gstarnberger/uncompyle) -  A Python 2.7 byte-code decompiler (.pyc)

 - [WinDBG](http://www.windbg.org/) - Windows debugger distributed by Microsoft.

 - [Z3](https://github.com/Z3Prover/z3) - A theorem prover from Microsoft Research.



## Steganography



*Tools used for solving Stego challenges*



 - [AperiSolve](https://aperisolve.fr/) - Platform which performs layer analysis on images.

 - [BPStegano](https://github.com/TapanSoni/BPStegano) - Python3 based LSB steganography.

 - [DeepSound](https://github.com/Jpinsoft/DeepSound) - Freeware steganography tool and audio converter that hides secret data into audio files.

 - [DTMF Detection](https://unframework.github.io/dtmf-detect/) - Audio frequencies common to a phone button.

 - [DTMF Tones](http://dialabc.com/sound/detect/index.html) - Audio frequencies common to a phone button.

 - [Exif](http://manpages.ubuntu.com/manpages/trusty/man1/exif.1.html) - Shows EXIF information in JPEG files.

 - [Exiv2](https://www.exiv2.org/manpage.html) - Image metadata manipulation tool.

 - [FotoForensics](https://fotoforensics.com/) - Provides budding researchers and professional investigators access to cutting-edge tools for digital photo forensics.

 - [hipshot](https://bitbucket.org/eliteraspberries/hipshot/src/master/) - Tool to converts a video file or series of photographs into a single image simulating a long-exposure photograph.

 - [Image Error Level Analyzer](https://29a.ch/sandbox/2012/imageerrorlevelanalysis/) - Tool to analyze digital images. It's also free and web based. It features error level analysis, clone detection and more.

 - [Image Steganography](https://incoherency.co.uk/image-steganography/) - Client-side Javascript tool to steganographically hide/unhide images inside the lower "bits" of other images. 

 - [ImageMagick](http://www.imagemagick.org/script/index.php) - Tool for manipulating images.

 - [jsteg](https://github.com/lukechampine/jsteg) - Command-line tool to use against JPEG images.

 - [Magic Eye Solver](http://magiceye.ecksdee.co.uk/) - Get hidden information from images.

 - [Outguess](https://www.freebsd.org/cgi/man.cgi?query=outguess+&apropos=0&sektion=0&manpath=FreeBSD+Ports+5.1-RELEASE&format=html) - Universal steganographic tool.

 - [Pngcheck](http://www.libpng.org/pub/png/apps/pngcheck.html) - Verifies the integrity of PNG and dump all of the chunk-level information in human-readable form.

 - [Pngtools](https://packages.debian.org/sid/pngtools) - For various analysis related to PNGs.

 - [sigBits](https://github.com/Pulho/sigBits) - Steganography significant bits image decoder.

 - [SmartDeblur](https://github.com/Y-Vladimir/SmartDeblur) - Restoration of defocused and blurred photos/images.

 - [Snow](https://sbmlabs.com/notes/snow_whitespace_steganography_tool) - Whitespace Steganography Tool

 - [Sonic Visualizer](https://www.sonicvisualiser.org/) - Audio file visualization.

 - [Steganography Online](https://stylesuxx.github.io/steganography/) - Online steganography encoder and decoder.

 - [Stegbreak](https://linux.die.net/man/1/stegbreak) - Launches brute-force dictionary attacks on JPG image.

 - [StegCracker](https://github.com/Paradoxis/StegCracker) - Brute-force utility to uncover hidden data inside files.

 - [stegextract](https://github.com/evyatarmeged/stegextract) - Detect hidden files and text in images.

 - [Steghide](http://steghide.sourceforge.net/) - Hide data in various kinds of image- and audio-files.

 - [StegOnline](https://stegonline.georgeom.net/) - Conduct a wide range of image steganography operations, such as concealing/revealing files hidden within bits.

 - [Stegosaurus](https://github.com/AngelKitty/stegosaurus) - A steganography tool for embedding payloads within Python bytecode.

 - [StegoVeritas](https://github.com/bannsec/stegoVeritas) - Yet another stego tool.

 - [Stegpy](https://github.com/dhsdshdhk/stegpy) - Simple steganography program based on the LSB method.

 - [stegseek](https://github.com/RickdeJager/stegseek) - Lightning fast steghide cracker that can be used to extract hidden data from files. 

 - [stegsnow](https://manpages.ubuntu.com/manpages/trusty/man1/stegsnow.1.html) - Whitespace steganography program.

 - [Stegsolve](https://github.com/zardus/ctf-tools/tree/master/stegsolve) - Apply various steganography techniques to images.

 - [Zsteg](https://github.com/zed-0xff/zsteg/) - PNG/BMP analysis.



## Web 



*Tools used for solving Web challenges*



 - [Arachni](https://www.arachni-scanner.com/) - Web Application Security Scanner Framework.

 - [Beautifier.io](https://beautifier.io/) - Online JavaScript Beautifier.

 - [BurpSuite](https://portswigger.net/burp) - A graphical tool to testing website security.

 - [Commix](https://github.com/commixproject/commix) - Automated All-in-One OS Command Injection Exploitation Tool.

 - [debugHunter](https://github.com/devploit/debugHunter) - Discover hidden debugging parameters and uncover web application secrets.

 - [Dirhunt](https://github.com/Nekmo/dirhunt) - Find web directories without bruteforce.

 - [dirsearch](https://github.com/maurosoria/dirsearch) - Web path scanner.

 - [dontgo403](https://github.com/devploit/dontgo403) - Tool to bypass 40x errors.

 - [ffuf](https://github.com/ffuf/ffuf) - Fast web fuzzer written in Go.

 - [git-dumper](https://github.com/arthaud/git-dumper) - A tool to dump a git repository from a website.

 - [Gopherus](https://github.com/tarunkant/Gopherus) - Tool that generates gopher link for exploiting SSRF and gaining RCE in various servers.

 - [Hookbin](https://hookbin.com/) - Free service that enables you to collect, parse, and view HTTP requests.

 - [JSFiddle](https://jsfiddle.net/) - Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.

 - [ngrok](https://ngrok.com/) - Secure introspectable tunnels to localhost.

 - [OWASP Zap](https://owasp.org/www-project-zap/) - Intercepting proxy to replay, debug, and fuzz HTTP requests and responses.

 - [PHPGGC](https://github.com/ambionics/phpggc) - Library of PHP unserialize() payloads along with a tool to generate them, from command line or programmatically.

 - [Postman](https://chrome.google.com/webstore/detail/postman/fhbjgbiflinjbdggehcddcbncdddomop?hl=en) - Addon for chrome for debugging network requests.

 - [REQBIN](https://reqbin.com/) - Online REST & SOAP API Testing Tool.

 - [Request Bin](https://requestbin.com/) - A modern request bin to inspect any event by Pipedream.

 - [Revelo](http://www.kahusecurity.com/posts/revelo_javascript_deobfuscator.html) - Analyze obfuscated Javascript code.

 - [Smuggler](https://github.com/defparam/smuggler) -  An HTTP Request Smuggling / Desync testing tool written in Python3.

 - [SQLMap](https://github.com/sqlmapproject/sqlmap) - Automatic SQL injection and database takeover tool.

 - [W3af](https://github.com/andresriancho/w3af) - Web application attack and audit framework.

 - [XSSer](https://xsser.03c8.net/) - Automated XSS testor.

 - [ysoserial](https://github.com/frohoff/ysoserial) - Tool for generating payloads that exploit unsafe Java object deserialization.



# 0x02. Resources



## Online Platforms



*Always online CTFs*



 - [247CTF](https://247ctf.com/) - Free Capture The Flag Hacking Environment.

 - [Atenea](https://atenea.ccn-cert.cni.es/) - Spanish CCN-CERT CTF platform.

 - [CTFlearn](https://ctflearn.com/) - Online platform built to help ethical hackers learn, practice, and compete.

 - [CTF365](https://ctf365.com/) - Security Training Platform

 - [Crackmes.One](https://crackmes.one/) - Reverse Engineering Challenges.

 - [CryptoHack](https://cryptohack.org/) - Cryptography Challenges.

 - [Cryptopals](https://cryptopals.com/) - Cryptography Challenges. 

 - [echoCTF.RED](https://echoctf.red/) - Online Hacking Laboratories.

 - [Hacker101](https://www.hacker101.com/) - CTF Platform by [HackerOne](https://www.hackerone.com/).

 - [HackTheBox](https://www.hackthebox.com/) - A Massive Hacking Playground.

 - [HackThisSite](https://www.hackthissite.org/) - Free, safe and legal training ground for hackers.

 - [MicroCorruption](https://microcorruption.com/) - Embedded Security CTF.

 - [OverTheWire](https://overthewire.org/wargames/) - Wargame offered by the OverTheWire community.

 - [picoCTF](https://picoctf.org/) - Beginner-friendly CTF platform.

 - [Pwnable.kr](http://pwnable.kr/) - Pwn/Exploiting platform.

 - [Pwnable.tw](https://pwnable.tw/) - Pwn/Exploiting platform.

 - [Pwnable.xyz](https://pwnable.xyz/) - Pwn/Exploiting platform.

 - [PWNChallenge](http://pwn.eonew.cn/) - Pwn/Exploiting platform.

 - [Reversing.kr](http://reversing.kr/) - Reverse Engineering platform.

 - [Root-me](https://www.root-me.org/) - CTF training platform.

 - [VibloCTF](https://ctf.viblo.asia/landing) - CTF training platform.

 - [VulnHub](https://www.vulnhub.com/) - VM-based pentesting platform.

 - [W3Challs](https://w3challs.com/) - Hacking/CTF platform.

 - [WebHacking](https://webhacking.kr/) - Web challenges platform.

 - [Websec.fr](http://websec.fr/) - Web challenges platform.

 - [WeChall](https://www.wechall.net/active_sites) - Challenge sites directory & forum



*Self-hosted CTFs*



 - [Damn Vulnerable Web Application](https://dvwa.co.uk/) - PHP/MySQL web application that is damn vulnerable.

 - [Juice Shop](https://github.com/juice-shop/juice-shop-ctf) - Capture-the-Flag (CTF) environment setup tools for OWASP Juice Shop. 



## Collaborative Tools



 - [CTFNote](https://github.com/TFNS/CTFNote) - Collaborative tool aiming to help CTF teams to organise their work.



## Writeups Repositories



*Repository of CTF Writeups*



 - [Courgettes.Club](https://ctf.courgettes.club/) - CTF Writeup Finder.

 - [CTFtime](https://ctftime.org/writeups) - CTFtime Writeups Collection.

 - [Github.com/CTFs](https://github.com/ctfs) - Collection of CTF Writeups.



## Courses



 - [Roppers Bootcamp](https://www.roppers.org/courses/ctf) - CTF Bootcamp.



# 0x03. Bibliography



*The resources presented here have been gathered from numerous sources. However, the most important are:*



 - [apsdehal_awesome-ctf](https://github.com/apsdehal/awesome-ctf)

 - [vavkamil_awesome-bugbounty-tools](https://github.com/vavkamil/awesome-bugbounty-tools)

 - [zardus_ctf-tools](https://github.com/zardus/ctf-tools)