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OffSec

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257 reviews
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4.6
Serving customers since
2006
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Kali Linux

241 reviews

Kali Linux is an open-source, Debian-based distribution tailored for advanced penetration testing and security auditing. It offers a comprehensive suite of tools and configurations, enabling users to focus on their security tasks without the need for extensive setup. Kali Linux is accessible across multiple platforms and is freely available to information security professionals and enthusiasts. Key Features and Functionality: - Extensive Toolset: Provides hundreds of pre-installed tools for various information security tasks, including penetration testing, security research, computer forensics, reverse engineering, vulnerability management, and red team testing. - Multi-Platform Support: Compatible with various platforms, ensuring flexibility and adaptability for different user needs. - Cloud Integration: Available as an Amazon Machine Image on AWS Marketplace, allowing users to deploy Kali Linux instances in the cloud efficiently. Primary Value and User Solutions: Kali Linux addresses the critical need for a robust and comprehensive security testing environment. By offering a vast array of tools and configurations out of the box, it enables security professionals to conduct thorough assessments, identify vulnerabilities, and strengthen defenses without the overhead of manual tool integration. Its availability on platforms like AWS further enhances its utility by providing scalable and on-demand access to a powerful security testing environment.

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OffSec

15 reviews

The Penetration Testing with Kali Linux (PWK/PEN-200) online ethical hacking course is self-paced. It introduces penetration testing tools and techniques via hands-on experience. PEN-200 trains not only the skills, but also the mindset required to be a successful penetration tester. Students who complete the course and pass the exam earn the Offensive Security Certified Professional (OSCP) certification. This course features five recently retired OSCP exam machines now added to the PWK labs. These five machines represent an entire OSCP exam room.

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Offensive Security Testing Services

1 review

Secure your career in information security. Level up in penetration testing, web application security, or network security with the team behind Kali Linux and the OSCP certification: Offensive Security.

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OffSec Reviews

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Sahil K.
SK
Sahil K.
Penetration Tester | Bug Hunter | HoF NASA | Secured Govt.of.India | Web Penetration Tester | CEHv12
04/22/2026
Validated Reviewer
Review source: G2 invite
Incentivized Review

A Powerful Pentesting Tool with Some Performance Hiccups

I learn Linux from Kali Linux, and as a hacker, I appreciate the preinstalled tools it offers, like Wifite, Nmap, and Dirsearch, which ease my work in pentesting. The interface is very good and has a hacker vibe, making it feel like I'm truly in a hacker's room. I can run pentesting commands without needing to download programs manually. The setup was 'easy peasy,' and my team and I use Kali Linux as our primary OS for pentesting projects. I am so satisfied that I'd give it a 10 out of 10 when recommending to a friend or colleague.
Himanshu C.
HC
Himanshu C.
Security Researcher | Cybersecurity & Threat Analysis | Squadron Innovation Labs
04/21/2026
Validated Reviewer
Verified Current User
Review source: G2 invite
Incentivized Review

Unmatched toolset, real-world results, zero licensing cost

Kali is basically the OS that thinks like an attacker. The toolset breadth is insane — Burp Suite Pro integration, Metasploit Framework, Wireshark, John the Ripper, sqlmap, Nikto, Gobuster — all pre-baked, no dependency hell. During actual VAPT engagements I'm constantly switching between recon, exploitation, and post-ex phases, and Kali flows with that seamlessly. The custom kernel patches for wireless injection are a massive win for wireless audits — stock kernels on other distros just choke when you need monitor mode and packet injection simultaneously. Custom kernel builds for specific chipsets like RTL8812AU work out of the box. The rolling release model means I'm never manually hunting updated tool versions. WSL2 support has been a game changer — I can spin up Kali inside a Windows lab environment without a full VM. The community is unmatched too; for any weird edge case at 2am, there's a Kali forums thread or a GitLab issue with a fix. For anyone doing professional pentesting or security research, there's genuinely no reason to reach for anything else as your primary attack box.
Verified User in Information Technology and Services
AI
Verified User in Information Technology and Services
04/17/2026
Validated Reviewer
Review source: G2 invite
Incentivized Review

Powerful Preloaded Toolkit with Nmap, Metasploit, and Wireshark

It comes preloaded with powerful tools like Nmap, Metasploit, and Wireshark, which eliminates the need for manual installation and setup.

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What is OffSec?

Empowering the world to fight cyber threats with indispensable cybersecurity skills and resources. Build the path to a secure future with OffSec.

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Year Founded
2006
Website
www.offsec.com