Best Penetration Testing Labs

If you are looking for the best penetration testing labs, you are looking at the right place. We will provide some of the most known pentesting labs that are great for exercise and simulation on cybersecurity defense. These are all free to use for everybody.

Under the Wire

Under the Wire is a wargame pen testing lab that focuses on combat simulation against any potential attacker. It is also widely considered as one of the friendliest pentesting lab for beginners. It’s the best way to learn Linux commands.

Over the Wire 

Over the Wire is more of an expanded version of Under The Wire. While it has its share of Linux commands, Over the Wire also includes WIndows exploits and Powershell commands to know about. Great for Windows pen testers.


HackThisSite is another great pen test simulator for beginners. It is also one of the first pen testing simulators that you can use for free.

Active since 2003, we are more than just another hacker wargames site. We are a living, breathing community devoted to learning and sharing ethical hacking knowledge, technical hobbies, programming expertise, with many active projects in development.


Gh0stlab is a collection of machines and virtual networks created to promote and facilitate the learning of all aspects of information security. This network is an ever-growing entity created to provide an opportunity for training and experimentation. Think of it as a virtual hacker room. We encourage user participation in challenges, CTFs, lab extensions, research and education.

Root Me 

Root Me may not be a free to use program but what it offers is an organized course of cyber security and various pen testing tools. It also houses the most labs out of all the competition, making it the complete experience for beginners.

All these are very useful and it all comes down to preference as to which is the best penetration testing lab.