Best Free Penetration Testing Tools
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Compare the Top Free Penetration Testing Tools as of November 2026
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What are Free Penetration Testing Tools?
Penetration testing software tools enable security professionals to test applications and IT systems to identify vulnerabilities. Penetration testing tools, sometimes known as "pen testing" tools, can simulate a hack or attack in order to test the security of a given application or system. Compare and read user reviews of the best Free Penetration Testing tools currently available using the table below. This list is updated regularly.
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1
Aikido Security
Aikido Security
Get a pentest done, today. Autonomous AI agents that outperform humans at machine speed. Get a full audit-grade SOC2 or ISO27001 PDF report in hours, not weeks. Aikido Attack is the future of pentesting.Starting Price: Free -
2
Quixxi
Quixxi
Quixxi is a leading provider of mobile app security solutions that empowers enterprises and security professionals to protect their mobile applications through its patented and proprietary three-pillar platform: SCAN, an automated vulnerability assessment tool (SAST/DAST/WebAPI) that integrates into the development pipeline to identify and fix vulnerabilities with full remediation guidance; SHIELD, a one-click application shielding tool (RASP) that provides baseline security controls to protect intellectual property and defend against malicious third-party attacks; and SUPERVISE, a runtime monitoring solution that enables remote disabling, messaging, security logs, and customer analytics for enhanced app management and visibility. Serving: Mobile App Developers, Security Teams, and Organizations in Banking, Fintech, Digital Wallets, Healthcare, Government, and ITStarting Price: $29 for One-Off plan -
3
ZeroThreat.ai
ZeroThreat Inc.
ZeroThreat.ai is an AI-powered penetration testing platform that identifies and validates real, exploitable vulnerabilities across modern web applications and APIs. Using Agentic AI, it executes adaptive attacker workflows to simulate real-world attack paths, proving impact and eliminating false positives. The platform leverages continuously updated vulnerability checks with proof-based validation, real-time CVE coverage and Application Journeys (Playwright-powered) to test authenticated flows, APIs, and complex business logic beyond traditional crawling. It also integrates custom and community-driven attack templates to extend coverage and reflect real-world attack techniques. By focusing on verified findings rather than raw vulnerability counts, ZeroThreat.ai reduces manual triage by over 90% and enables security teams to prioritize and remediate actual risk with confidence, while maintaining continuous, production-safe testing across environments.Starting Price: $100/Target -
4
Defendify
Defendify
Founded in 2017, Defendify is pioneering All-In-One Cybersecurity® for organizations with growing security needs, backed by experts offering ongoing guidance and support. Delivering multiple layers of protection, Defendify provides an easy-to-use platform designed to strengthen cybersecurity across people, process, and technology, continuously. Defendify streamlines cybersecurity assessments, testing, policies, training, detection, response, and containment in one consolidated and cost-effective cybersecurity solution. 3 layers, 13 solutions, 1 platform, including: • Managed Detection & Response • Cyber Incident Response Plan • Cybersecurity Threat Alerts • Phishing Simulations • Cybersecurity Awareness Training • Cybersecurity Awareness Videos • Cybersecurity Awareness Posters & Graphics • Technology Acceptable Use Policy • Cybersecurity Risk Assessments • Penetration Testing • Vulnerability Scanning • Compromised Password Scanning • Website Security ScanningStarting Price: $0 -
5
HackenProof
HackenProof
We are a web3 bug bounty platform since 2017. We help to set a clear scope (or you can do it by yourself), agree on a budget for valid bugs (platform subscription is free), and make recommendations based on your company`s needs. We launch your program and reach out to our committed crowd of hackers, attracting top talent to your bounty program by with consistent and coordinated attention. Our community of hackers starts searching for vulnerabilities. Vulnerabilities are submitted and managed via our Coordination platform. Reports are reviewed and triaged by the HackenProof team (or by yourself), and then passed on to your security team for fixing. Depending on preference, you can choose to publicly disclose any reports, once the issues are resolved. We connect business with a community of hackers from different parts of the globe.Starting Price: $0 per month -
6
Reporter
Security Reporter
Security Reporter is an enterprise-grade pentest reporting software designed to streamline and standardize the penetration testing and security assessment reporting workflow. The platform supports security teams and pentesting providers in managing findings, producing professional reports, and delivering consistent results across complex environments. Key capabilities include a centralized content and vulnerability library, customizable report templates, multi-language reporting, and native imports from more than 140 security testing tools. These features support efficient vulnerability management, accurate reporting, and repeatable assessment processes. Security Reporter is offered exclusively as a self-hosted, on-premise solution, ensuring full control over sensitive security data and supporting common compliance and data governance requirements. By reducing manual reporting effort and minimizing errors, the platform improves productivity and shortens reporting cycles. -
7
Pentest-Tools.com
Pentest-Tools.com
Pentest-Tools.com helps security professionals find, validate, and communicate vulnerabilities faster and with greater confidence - whether they’re internal teams defending at scale, MSPs juggling clients, or consultants under pressure. With comprehensive coverage across network, web, API, and cloud assets, and built-in exploit validation, it turns every scan into credible, actionable insight. Trusted by over 2,000 teams in 119 countries and used in more than 6 million scans annually, it delivers speed, clarity, and control - without bloated stacks or rigid workflows. ✔️ Comprehensive toolkit with real-world coverage ✔️ Validated findings rich with evidence ✔️ Automation options with granular control ✔️ Flexible, high-quality reporting ✔️ Workflow-friendly by designStarting Price: $95 per month -
8
Contrast Security
Contrast Security
Modern software development must match the speed of the business. But the modern AppSec tool soup lacks integration and creates complexity that slows software development life cycles. Contrast simplifies the complexity that impedes today’s development teams. Legacy AppSec employs a one-size-fits-all vulnerability detection and remediation approach that is inefficient and costly. Contrast automatically applies the best analysis and remediation technique, dramatically improving efficiencies and efficacy. Separate AppSec tools create silos that obfuscate the gathering of actionable intelligence across the application attack surface. Contrast delivers centralized observability that is critical to managing risks and capitalizing on operational efficiencies, both for security and development teams. Contrast Scan is pipeline native and delivers the speed, accuracy, and integration demanded by modern software development.Starting Price: $0 -
9
Phishing Club
Phishing Club
Phishing Club is an open source phishing simulation and red team phishing framework for authorized security testing. Self host it on your own server via a one line installer or Docker. Plan, launch, and measure realistic campaigns from a single Go binary with an embedded web UI, HTTP/HTTPS phishing servers, and a REST API. Features: multi stage phishing flows, flexible scheduling, multiple domains with automatic TLS, SMTP or custom API delivery with OAuth, recipient groups with CSV import and SCIM, PDF campaign reports, analytics, multi tenancy, MFA and SSO (Entra ID, OIDC), webhooks, and in app updates. Red team and AiTM: reverse proxy phishing to capture sessions, remote browser phishing, DOM and URL rewriting, dynamic obfuscation, JA4 and geo IP filtering, and device code phishing.Starting Price: 0 -
10
EthicalCheck
EthicalCheck
Submit API test requests via the UI form or invoke EthicalCheck API using cURL/Postman. Request input requires a public-facing OpenAPI Spec URL, an API authentication token valid for at least 10 mins, an active license key, and an email. EthicalCheck engine automatically creates and runs custom security tests for your APIs covering OWASP API Top 10 list Automatically removes false positives from the results, creates a custom developer-friendly report, and emails it to you. According to Gartner, APIs are the most-frequent attack vector. Hackers/bots have exploited API vulnerabilities resulting in major breaches across thousands of organizations. Only see real vulnerabilities; false positives are automatically separated. Generate enterprise-grade penetration test reports. Confidently share it with developers, customers, partners, and compliance teams. Using EthicalCheck is similar to running a private bug-bounty program.Starting Price: $99 one-time payment -
11
Caido
Caido Labs Inc.
Caido is a modern web security toolkit designed for pentesters, bug bounty hunters, and security teams who need an efficient and customizable solution for web application testing. Caido features a powerful intercept proxy for capturing and manipulating HTTP requests, replay functionality for testing endpoints, and automation tools for handling large-scale workflows. Its sitemap visualization provides a clear view of web application structures, helping users map and navigate complex targets. With HTTPQL, users can efficiently filter and analyze traffic, while no-code workflows and a plugin system enable easy customization to fit specific testing needs. Built on a flexible client/server architecture, Caido supports local or remote hosting, allowing seamless access from anywhere. Its project management system simplifies switching between targets and eliminates the need for manual file handling, keeping workflows organized.Starting Price: Free -
12
BreachLine
BreachLine Labs
BreachLine is a security testing platform centered on Nebula, an AI security engineer that helps teams scope authorized assessments, plan and run tests, investigate potential weaknesses, review evidence and remediation guidance, produce reports, and retest fixes. It supports testing of web applications, APIs, mobile applications, cloud environments, networks, and AI systems, with scheduled work, shared team workspaces, and integrations with communication and issue-tracking tools. Usage is credit-based, with monthly subscription plans and an enterprise per-seat option. BreachLine also offers a separate toolkit of 16 free, no-signup browser security tools for reviewing dependencies, comparing lockfiles and SBOMs, and checking CI workflows and application settings. Deterministic local checks run in the browser; hosted MCP reviews process submitted content on BreachLine systems.Starting Price: £399/month -
13
Intruder
Intruder
Intruder's continuous exposure management platform helps security, IT, and engineering teams stop breaches before they start. By unifying AI penetration testing, attack surface monitoring, cloud security, and vulnerability management in one intuitive platform, Intruder gives stretched teams an always-on security source of truth. Our approach focuses on continuous automated scanning using deep security expertise and agentic solutions to ensure that the findings we deliver are accurate, prioritized by real-world risk, and ready to act on. Founded in 2015 by Chris Wallis, a former ethical hacker turned corporate blue teamer, Intruder is now protecting over 3,000 companies worldwide. Intruder has been awarded multiple accolades, was selected for GCHQ’s Cyber Accelerator, included on Deloitte’s Tech Fast 50 2023 list as the fastest-growing cybersecurity company in the UK and was named in G2’s 2026 Best Software Awards. -
14
Praetorian Chariot
Praetorian
Chariot is the first all-in-one offensive security platform that comprehensively catalogs Internet-facing assets, contextualizes their value, identifies and validates real compromise paths, tests your detection response program, and generates policy-as-code rules to prevent future exposures from occurring. As a concierge managed service, we operate as an extension of your team to reduce the burden of day-to-day blocking and tackling. Dedicated offensive security experts are assigned to your account to assist you through the full attack lifecycle. We remove the noise by verifying the accuracy and importance of every risk before ever submitting a ticket to your team. Part of our core value is only signaling when it matters and guaranteeing zero false positives. Gain the upper-hand over attackers by partnering Praetorian. We put you back on the offensive by combining security expertise with technology automation to continuously focus and improve your defensive. -
15
Indusface WAS
Indusface
Get the most comprehensive application security audit done today. Indusface WAS with its automated scans & manual pen-testing ensures none of the OWASP Top10, business logic vulnerabilities and malware go unnoticed. With zero false positive guarantee and comprehensive report with remediation guidance, Indusface web app scanning ensures developers quickly fixes vulnerabilities. The proprietary scanner built ground up, keeping js framework driven, single page applications in mind to provide complete & intelligent crawling. With latest threat intelligence, get extensive web app scanning for vulnerabilities, and malware. Support on a functional understanding of logical flaws for an in-depth security audit.Starting Price: $49 per month -
16
Synack
Synack
Synack delivers continuous security validation through its Human + AI platform for continuous pentesting. Sara AI Pentesting, powered by the Synack Autonomous Red Agent, combines agentic AI with the Synack Red Team—the world’s most rigorously vetted community of security researchers—to help organizations proactively reduce risk, stay compliant, and stay ahead of evolving cyber threats. Sara handles reconnaissance, attack surface mapping, and initial exploit validation at scale, while human experts validate real-world exploitability and provide the creativity and judgement automation cannot replicate. Founded by former NSA operatives, Synack has enabled nearly 10 million hours of security testing to protect critical assets, from global financial systems to U.S. Defense Department networks. Synack was recognized by GigaOm’s 2025 PTaaS Radar as both a Leader and Fast Mover, and received Global InfoSec Awards for Market Leader in AI-Powered Cybersecurity and Trailblazer in PTaaS. -
17
SecurityForEveryone
SecurityForEveryone
S4E:Shelter automatically understands the technology you have, prioritizes and performs security assessments optimized for your application without the need for technical expertise. S4E:Shelter is an automated security assessment tool that detects the tech stack of your assets and their vulnerabilities using machine learning, and offers actionable solutions to you. Your security is up to date. S4E:Solidarity is an API gateway to make the cybersecurity process easier for apps. So, developers can integrate the security process into their development cycle. S4E:Equality is a repository of more than 500 free cybersecurity assessment tools. Anyone can use these tools to detect security vulnerabilities according to their specific needs. S4E:Education is a security awareness training platform that helps you learn about the fundamentals of cybersecurity using quizzes and social engineering attacks. -
18
Looxy.io
Looxy.io
Looxy.io aims to be the most useful single place you can go to for software testing. looxy.io software testing is planning to add many new tests including web page performance tests, Load testing, penetration testing, Web application security testing and everything in between. All test will be easy to start and free. If you want to use the advanced test setting, schedule them or run them more frequently then you may need an inexpensive subscription.Starting Price: Free -
19
Insomnia
CQR
Insomnia is an autonomous AI pentesting and offensive security platform from CQR Cybersecurity. Point it at a target and its AI red team runs recon, vulnerability scanning, OSINT, CVE validation, exploitation and privilege escalation across web apps, APIs, networks, cloud and Active Directory, then writes a client-ready PDF, DOCX or HTML report with CVSS scoring and fixes. It brings 275+ security modules into one tool: SAST and DAST, secret detection with live key validation, dependency and CVE scanning, API and GraphQL testing, wireless audit, Active Directory auditing with BloodHound, an HTTP interception proxy and a CI/CD pipeline builder. It also ships Insomnia OS, a Debian-based offensive OS. There is a free Community Edition and a free SAST engine (pip, npm, Docker, Homebrew, plus VS Code and JetBrains plugins). Paid Advanced and Pro plans add full AI automation, the 30,000+ CVE database, exploitation tooling, OSINT and mobile analysis.Starting Price: $149/month -
20
AgentRidge
Agent Ridge
AgentRidge is desktop security-audit software for assessing e-commerce websites, customer portals and other web platforms within an authorized testing scope. Its AI agents explore defined pages, account roles, checkout flows, business rules, exposed services and data, coordinating security tools as part of an investigation. The software presents findings with evidence, reproduction steps, severity and business impact, and generates PDF reports for developers and security teams. Users can run independent assessments on macOS, Windows or Linux through the command-line edition; audit data and results are stored locally, while account, licensing and payment functions use online services. AgentRidge is intended for e-commerce operators, web-platform teams, agencies, developers, security engineers, penetration testers and red teams. Buyers may choose an annual software license for self-directed audits or a separately scoped, vendor-delivered audit and remediation service.Starting Price: €500 per-audit -
21
Metasploit
Rapid7
Knowledge is power, especially when it’s shared. A collaboration between the open source community and Rapid7, Metasploit helps security teams do more than just verify vulnerabilities, manage security assessments, and improve security awareness; it empowers and arms defenders to always stay one step (or two) ahead of the game. -
22
Hexway Pentest Suite
Hexway
Efficiently collaborate with your team, generate actionable, detailed reports, and build better relations with customers with Hexway Hive & Apiary.Starting Price: $0
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