Home/Free Penetration Testing Tools

Free Penetration Testing Tools

Discover the best free and open source penetration testing tools for security assessments, vulnerability discovery, and red team operations. Browse curated pen testing tools for ethical hacking.

500 tools·60 sub-categories·Updated April 2026

Showing 24 of 500 tools

Awesome-Hacking icon

Awesome-Hacking

Hack-with-Github/Awesome-Hacking

Documentation

A collection of various awesome lists for hackers, pentesters and security researchers

104.7K
3 months ago
hackingtool icon

hackingtool

Z4nzu/hackingtool

Tool

ALL IN ONE Hacking Tool For Hackers

54.5K
3 months ago
mitmproxy icon

mitmproxy

mitmproxy/mitmproxy

Tool

An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.

41.9K
3 months ago
sqlmap icon

sqlmap

sqlmapproject/sqlmap

Tool

Automatic SQL injection and database takeover tool

36.3K
3 months ago
metasploit-framework icon

metasploit-framework

rapid7/metasploit-framework

Tool

Metasploit Framework

35.7K
10 months ago
h4cker icon

h4cker

The-Art-of-Hacking/h4cker

Educational Resource

This repository is maintained by Omar Santos (@santosomar) and includes thousands of resources related to ethical hacking, bug bounties, digital forensics and incident response (DFIR), AI security, vulnerability research, exploit development, reverse engineering, and more. 🔥 Also check: https://hackertraining.org

24.8K
3 months ago
cutter icon

cutter

rizinorg/cutter

Tool

Free and Open Source Reverse Engineering Platform powered by rizin

18.3K
3 months ago
SWE-agent icon

SWE-agent

SWE-agent/SWE-agent

Tool

SWE-agent takes a GitHub issue and tries to automatically fix it, using your LM of choice. It can also be employed for offensive cybersecurity or competitive coding challenges. [NeurIPS 2024]

18.3K
3 months ago
Awesome-Hacking-Resources icon

Awesome-Hacking-Resources

vitalysim/Awesome-Hacking-Resources

Educational Resource

A collection of hacking / penetration testing resources to make you better!

16.7K
3 months ago
awesome-hacking icon

awesome-hacking

carpedm20/awesome-hacking

Educational Resource

A curated list of awesome Hacking tutorials, tools and resources

15.5K
3 months ago
esp8266_deauther icon

esp8266_deauther

SpacehuhnTech/esp8266_deauther

Tool

Affordable WiFi hacking platform for testing and learning

14.1K
10 months ago
wifiphisher icon

wifiphisher

wifiphisher/wifiphisher

Tool

The Rogue Access Point Framework

14.0K
8 months ago
gobuster icon

gobuster

OJ/gobuster

Tool

Directory/File, DNS and VHost busting tool written in Go

13.3K
3 months ago
routersploit icon

routersploit

threat9/routersploit

Framework

Exploitation Framework for Embedded Devices

12.9K
3 months ago
subfinder icon

subfinder

projectdiscovery/subfinder

Tool

Fast passive subdomain enumeration tool.

12.9K
3 months ago
pwntools icon

pwntools

Gallopsled/pwntools

Library/SDK

CTF framework and exploit development library

12.6K
10 months ago
wifi-cracking icon

wifi-cracking

brannondorsey/wifi-cracking

Educational Resource

Crack WPA/WPA2 Wi-Fi Routers with Airodump-ng and Aircrack-ng/Hashcat

12.2K
3 months ago
Resources-for-Beginner-Bug-Bounty-Hunters icon

Resources-for-Beginner-Bug-Bounty-Hunters

nahamsec/Resources-for-Beginner-Bug-Bounty-Hunters

Educational Resource

A list of resources for those interested in getting started in bug bounties

11.7K
3 months ago
PentestGPT icon

PentestGPT

GreyDGL/PentestGPT

Tool

Automated Penetration Testing Agentic Framework Powered by Large Language Models

11.0K
3 months ago
TheFatRat icon

TheFatRat

screetsec/TheFatRat

Tool

Thefatrat a massive exploiting tool : Easy tool to generate backdoor and easy tool to post exploitation attack like browser attack and etc . This tool compiles a malware with popular payload and then the compiled malware can be execute on windows, android, mac . The malware that created with this tool also have an ability to bypass most AV software protection .

10.9K
3 months ago
hacktricks icon

hacktricks

HackTricks-wiki/hacktricks

Documentation

Welcome to the page where you will find each trick/technique/whatever I have learnt in CTFs, real life apps, and reading researches and news.

10.8K
3 months ago
awesome-ctf icon

awesome-ctf

apsdehal/awesome-ctf

Educational Resource

A curated list of CTF frameworks, libraries, resources and softwares

10.6K
8 months ago
sliver icon

sliver

BishopFox/sliver

Framework

Adversary Emulation Framework

10.5K
3 months ago
Red-Teaming-Toolkit icon

Red-Teaming-Toolkit

infosecn1nja/Red-Teaming-Toolkit

Tool

This repository contains cutting-edge open-source security tools (OST) for a red teamer and threat hunter.

10.0K
3 months ago

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Frequently Asked Questions

What is the best free penetration testing tool?

Metasploit Framework is widely considered the most comprehensive free penetration testing tool, offering exploit development, payload generation, and post-exploitation capabilities. Other top choices include Nmap for network scanning, Burp Suite Community for web app testing, and Wireshark for packet analysis.

Is Metasploit free to use?

Yes, Metasploit Framework is free and open source under a BSD license. A commercial version called Metasploit Pro exists with additional features, but the community edition covers the core exploitation framework used by most security professionals.

What tools do ethical hackers use?

Ethical hackers typically use a combination of tools including Nmap (network scanning), Burp Suite (web application testing), Metasploit (exploitation), Wireshark (packet analysis), Hashcat (password cracking), and Nikto (web server scanning). Many use Kali Linux, which bundles hundreds of these tools.

What is the difference between penetration testing and vulnerability scanning?

Vulnerability scanning is automated and identifies known weaknesses without exploiting them. Penetration testing is a manual, goal-oriented process where a tester actively attempts to exploit vulnerabilities to determine real-world impact. Pen testing requires human judgment and creativity beyond what scanners provide.

Can I learn penetration testing for free?

Yes. Platforms like Hack The Box, TryHackMe, and VulnHub provide free labs. Tools like Kali Linux, Metasploit, and Burp Suite Community Edition are free. OWASP provides free methodology guides. Many security professionals start with these free resources before pursuing certifications like CEH or OSCP.

What programming languages are used in penetration testing?

Python is the most common language for writing exploit scripts and automation. Bash scripting is essential for Linux-based testing. Ruby is used in Metasploit module development. PowerShell is critical for Windows environments. JavaScript knowledge helps with web application testing and XSS payloads.