Top 5 Best Operating Systems for Penetration Tester

A Hacker is a highly skilled operator who uses bugs to get into the computer system and networks for data breaching. On the other hand, an Ethical Hacker identifies all the vulnerabilities in computer systems and networks, and remove them from the system. So in this article, I have round-up the best 5 operating systems for ethical hackers.

Here is the list of top 5 best-operating systems for ethical hacking and penetration testing and you will get to know that all the operating systems are based on Linux.


Kali Linux is a Debian-based operating system developed by offensive securities. It is the topmost choice of any penetration tester, as it comes with more than hundreds of pre-installed tools for everything starting from information gathering till exploiting the vulnerabilities.

It is an operating system for every security enthusiast and professionals who work with information security. Thes tools available in Kali Linux are updated regularly and are available for different platforms like ARM and VMware.

For a forensic analysis, it comes with an ability to start via LIVE, i.e without installing the OS.

Few Kali Linux tools :

  • Aircrack-ng
  • Burp suite
  • Cisco Global Exploiter
  • Ettercap
  • John the Ripper
  • Kismet
  • Maltego
  • Metasploit framework

Click here to download the Kali Linux.


It is an Ubuntu-based  Linux distribution, capable of doing penetration testing and security assessment. It comes pre-installed with tools, that are useful for doing the vulnerability assessment and penetration testing.

BackBox puts a focus on Web application analysis, network analysis, stress tests and sniffing. Its usefulness is extended with software packages for vulnerability assessment, computer forensic analysis, and exploitation.

Few BackBox tools:

  • Metasploit/Armitage
  • Nmap
  • BeEF
  • OpenVAS
  • W3af
  • The Social Engineering Toolkit
  • Ettercap
  • Scapy

Click here to download Backbox.


It is a Debian based lightweight OS including the features of both Frozenbox and Kali Linux and having a collection of penetration testing tools. The tools of this OS can be used for attack mitigation, security research, forensics, and vulnerability assessment. It is developed by the Frozenbox team.

This operating system is designed for ethical hacking, network penetration testing, computer forensics, cryptography etc. It has a large amount of highly recognized tools but still uses Kali’s storage to update its tools although it has its own storing place for storing custom packages.

Click here to download the Parrot Security.


Pentoo Linux is a security-focused Live CD or Live USB designed for penetration testing and security assessment based on Gentoo Linux. It contains customized tools, kernel, and much more. It uses the XFCE interface and comes with ease of allowing to save any changes to a USB drive.

Pentoo Linux has the following category of  tools:

  • Analyzer
  • Bluetooth
  • Cracker
  • Database
  • Development
  • Exploit
  • Footprint
  • Forensics
  • Forging
  • Fuzzers
  • Misc
  • MitM
  • Pentoo
  • Proxy
  • RCE
  • Scanner
  • Wireless

Click here to download the Pentoo Linux.


The Samurai Web Testing Framework is a virtual machine, supported on VirtualBox and VMWare, that has been pre-configured to function as a web pen-testing environment. It has the best tools, that focuses on testing and attacking websites.

List of tools:

  • Fierce domain scanner
  • Maltego
  • WebScarab
  • Ratproxy
  • w3af
  • Burp
  • BeEF
  • AJAX Shell

Click here to download the Samurai Web Testing.

One thought on “Top 5 Best Operating Systems for Penetration Tester

  1. Normally I do not read article on blogs, but I wish to say that this write-up very forced me to take a look at and do it! Your writing style has been amazed me. Thank you, very nice article.

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