Best Free Website Penetration Testing Tools 2025

There are lots of free website penetration testing tools available on the internet that enhance the capability of the testers. 

Top Free Website Penetration Testing Tools to Use in 2025

Today, in this post, we have discussed all the free website penetration testing tools available on the internet for better software testing. 

Before starting, you should know about the concept of penetration testing and why it is useful for testing.

---

Read – How Big Data is Revolutionizing Cybersecurity

---

What is Penetration testing?

Penetration testing is the practice of testing a computer system, network, or web application that identifies all the susceptibilities that attackers or black hat hackers will use.

Although there are many penetration testing tools available on the market, it can also be performed manually by security experts. The main goal of this penetrating testing process is to determine security weaknesses in the system. Thus, it protects the web application or software from future threats. 

Instead of all these, these penetration tools can also be utilized to prove compliance with the organization’s security policies, the security of company important credentials, privacy, and critical data. Moreover, it helps companies combat these security threats. 

---

Read – Top Coding Podcasts for Developers: Stay Updated

---

Hence, security experts need to build a varied set of advanced penetration testing tools. It can be both commercial or free. 

There are lots of free website penetration testing tools available that serve the purpose of advanced security. The security administrator needs to find all the vulnerabilities before any black hat hackers do. 

Each tool discussed in this article differs in scanning methods and types of vulnerabilities that security experts can implement in the system to prevent security threats. 

These tools can be specific to operating systems, while others are agnostic. 

Hence, In this scenario, we should work smartly on choosing the advanced penetration testing tools that will make your task efficient and easier. 

These penetration tools are helpful for testers to perform their task effectively. 

Types of Penetration Testing?

Covert pen test: Also known as ‘double-blind’ penetration testing. In This scenario, almost no one in the company is aware that penetration testing is happening, including the security and IT professionals. 

External pen test: In this scenario, the ethical hackers go against the company’s external resources, such as websites and external servers. 

Internal pen test: The ethical hacker will perform penetration testing from the company’s internal networks.

There are various free website penetration testing tools available in the market. Here’s the complete list of free website penetration testing tools for advanced security testing. 

• Karkinos 

Karkinos is an efficient penetration testing tool that allows ethical hackers to encode or decode characters, encrypt or decrypt files and text, and perform penetration testing. Moreover, it is a complete bundle of multiple security tools modules that combine, thus enabling ethical hackers to carry out a wide range of security tests from a single tool. 

Key Features 

• Encodes or decodes characters in various standard formats
• Generate popular hashes such as MD5, SHA!, SHA256, SHA512
• Compatible with both Linux and Windows operating systems 
• Useful for crashing hashes simultaneously using a built-in large wordlist of editable or replaceable 15 million breached or common passwords. 

• Sifter 

Sifter is a popular penetration testing tool that is comprised of a combination of OSINT and intelligence-gathering tools, as well as vulnerability scanning modules. Furthermore, it combines multiple modules into a more comprehensive penetration testing suite. These penetration testing tools will quickly scan vulnerabilities, perform recon tasks, enumerate local and remote hosts, check firewalls, and many more. 

Key Features 

• Consists of 35 advanced penetration testing tools, thus allowing ethical hackers to scan websites, networks, and web applications. 
• Uses advanced Attack Surface Management (ASM) technology that maps the attack surface.
• Uses exploitation tools that enable ethically exploited found vulnerabilities. 
• Uses advanced information-gathering capabilities. 
• World on popular operating systems such as Ubuntu, Linux, Windows, Parrot, Kali Linux, and others. 
• Highly scalable and customizable because of the availability of a large number of penetration testing modules. 

• Metasploit 

Metasploit is an advanced penetration testing tool that helps security experts to identify and exploit vulnerabilities. Furthermore, it uses the closed-loop vulnerability validation tool that allows ethical hackers to prioritize while demonstrating the potential risks.

Moreover, the Metasploit tool is a feature-rich tool that allows it to perform a varied range of tests. This testing includes scanning and creating your payloads to perform exploits and test security awareness. 

Key Features 

• Uses an inbuilt discovery scanner for the discovery of TCP port scanning on the targeted device. It enables you to identify and open the open ports and vulnerabilities for exploitation. 
• It allows vulnerability and configuration error scanners that will enable you to identify flaws and potential attack vectors. 
• Automated or manual exploitation of targeted devices
• It allows the usage of a password attack method that enables you to access the target using brute force or by reusing credentials. 
• Available for both command line and GUI-based versions. 

• Sn1per

Sn1per is a complete penetration testing suite suitable for both teams and researchers. It uses the continuous Attack Surface management (ASM) platform that allows you to discover the application’s attack surface and vulnerabilities. 

Key Features 

• It uses an advanced attack surface management (ASM) platform to prioritize real security threats.
• It allows automation penetration tools that automate the process of discovering vulnerabilities and executing ethical exploits on identified flaws.
• It will enable the conducting of visual recon and scan web applications that automatically collect data on basic recon such as whois, ping, and DNS.
• Allows managing vulnerabilities from a single location. 

• Commix 

Commix is an open-source penetration testing tool that allows you to scan, identify, and exploit command injection vulnerabilities. This tool automates the entire flaw detection and exploitation processes. Thus, it increases speed, coverage, and efficiency. 

Commix stands for command, injection, and exploiter. It is an efficient penetration testing tool that comprises both scanning tools and commands injection vulnerability exploiter. 

Key Features 

• Automates the identification and exploitation of command injection flaws. It makes it faster to identify vulnerabilities.
• Identifies and exploits the discovered command injection vulnerabilities.
• Portability feature that allows the testing of several operating systems and applications.
• Allows the addition and customization of functionalities using a modular design that suits your requirements.
• Allows result-based command injection or blind command injection technique.

• BeEF

The BeEF stands for Browser Exploitation Framework (BeEF). This tool uses advanced client-side attack vectors that access the security posture of the targeted environment. 

Thus, the client-side attack vector approach allows you to bypass the underlying perimeter security and, therefore, enables you to access and analyze the target’s internal environment.

Key Features 

• Integrates with other penetration testing tools such as Metasploit.
• Allows the exploitation of identified vulnerabilities.
• Uses Network recon, thus enabling it to collect a wide range of information from hosts.
• It supports one or multiple web browsers, thus enabling several testers to launch various test modules.

• HackTools

HackTools is a powerful penetration testing web extension that integrates various tools and cheat sheets, thus allowing testing XSS payloads, reverse shells, and many more. 

Generally, It is available as a Chrome browser extension. It features a one-click feature that allows ethical hackers to search the payloads in your local storage and on several websites. 

Key Features 

• Dynamic reverse shell generator.
• SQLi, XSS, Local file inclusion (LFI), and many more.
• It allows for several data exfiltrations and thus supports download methods from a remote machine. 
• Hash generator for common hashes such as MD5, SHA1, SHA256, SHA512, and SM3.
• Quickly create payloads using the MSFVenom builder tool.

• Modlishka 

Modlishka is an efficient penetration testing tool that performs automated HTTP reverse proxy. This tool allows you to poison the HTTP 301 browser cache automatically. Moreover, the tool can be used to hijack non-TLS URLs. 

Modlishka uses several multi-factor authentication techniques to identify the highlighted 2FA vulnerabilities. 

Key Features 

• Allows Stripping a website from all security headers and encryption information.
• Allows harvest user credentials
• Enables phishing campaigns that allow the identification of weaknesses and thus raise awareness about popular phishing techniques.
• Supports injection of pattern-based javascript payload.

• Dirsearch

The Dirsearch is a powerful command line-based web path scanning tool. The tool features a feature-rich tool that allows you to brute force webserver directories and files. 

Dirsearch penetration tool gives accurate penetration testing performance and is thus used for modern brute force techniques. 

Key Features 

• Allows the detection of hidden and unhidden web directories and invalid web pages. 
• Allows Brute force webserver folders and files
• Improves scanning speed using Multi-threading
• Compatible with the popular operating system such as Linux, Mac, Windows, and many more. 

• Sqlmap

Sqlmap is an effective tool that automates the identification and exploitation of vulnerabilities that result in SQL Injection and database server takeover. Furthermore, it used advanced methods such as data fetching from the database, database fingerprinting, and out-of-band connections to execute commands on the operating system. 

Key Features 

• Allows scanning of web applications while identifying SQL injection. 
• It allows the detection of URLs and exploits vulnerable HTTP requests for URL accessing remote databases.
• Support several essential SQL injection techniques that include UNION query, stacked queries, error-based, time-based blind, and out-of-band.
• Supporting popular database servers include Microsoft SQL Server, MySQL, Oracle, Firebird, IBM DB2, and SQLite.
• Allows automatic recognition of hash password formats