Best Free Vulnerability Scanners

Secure your stack with Aikido's code-to-cloud security platform. Find and fix vulnerabilities fast & automatically. Aikido's all-in-one approach combines multiple important scanning capabilities. SAST, DAST, SCA, CSPM, IaC, Container scanning and more - making it a true ASPM platform.

ZeroPath (YC S24) is an AI-native application security platform that delivers comprehensive code protection beyond traditional SAST. Founded by security engineers from Tesla and Google, ZeroPath combines large language models with advanced program analysis to find and automatically fix vulnerabilities. ZeroPath provides complete security coverage: 1. AI-powered SAST for business logic flaws & broken authentication 2. SCA with reachability analysis 3. Secrets detection and validation 4. Infrastructure as Code 5. Automated patch generation. any more... ZeroPath delivers 2x more real vulnerabilities with 75% fewer false positives. Our research team has been successful in finding vulns like critical account takeover in better-auth (CVE-2025-61928, 300k+ weekly downloads), identifying 170+ verified bugs in curl, and discovering 0-days in production systems at Netflix, Hulu, and Salesforce. Trusted by 750+ companies and performing 200k+ code scans monthly.

GitGuardian is an end-to-end NHI security platform that empowers software-driven organizations to enhance their Non-Human Identity (NHI) security and comply with industry standards. With attackers increasingly targeting NHIs, such as service accounts and applications, GitGuardian integrates Secrets Security and NHI Governance. This dual approach enables the detection of compromised secrets across your dev environments while also managing non human identities and their secrets lifecycle. The platform supports over 450+ types of secrets, offers public monitoring for leaked data, and deploys honeytokens for added defense. Trusted by over 600,000 developers, GitGuardian is the choice of leading organizations like Snowflake, ING, BASF and Bouygues Telecom for robust secrets protection.

Crashtest Security is a SaaS-based security vulnerability scanner allowing agile development teams to ensure continuous security before even hitting Production. Our state-of-the-art dynamic application security testing (DAST) solution integrates seamlessly with your dev environment and protects multi-page and JavaScript apps, as well as microservices and APIs. Set up Crashtest Security Suite in minutes, get advanced crawling options, and automate your security. Whether you want to see vulnerabilities within the OWASP Top 10 or you want to go for deep scans, Crashtest Security is here to help you stay on top of your security and protect your code and customers.

The YAG-Suite is a French made innovative tool which brings SAST one step beyond. Based on static analysis and machine learning, YAGAAN offers customers more than a source code scanner : it offers a smart suite of tools to support application security audits as well as security and privacy by design DevSecOps processes. Beyond classic vulnerability detection, the YAG-Suite focuses the team attention on the problems that really matter in their business context, it supports developers in their understanding of the vulnerability causes and impacts. Its contextual remediation support them in fixing efficiently the problems while improving their secure coding skills. Additionally, YAG-Suite's unprecedented 'code mining' support security investigations of an unknown application with mapping all relevant code features and security mechanisms and offers querying capabilities to search for 0-days or non automatically detectable risks. PHP, Java and Python are supported. JS, C/C++ coming soon

The Code Registry is an AI-powered code intelligence and analysis platform that gives businesses and non-technical stakeholders full visibility into their software codebase, even if they don’t write code themselves. Upon connecting your code repository (GitHub, GitLab, Bitbucket, Azure DevOps, or uploading a zipped archive), the platform creates a secure “IP Vault” and runs a comprehensive automated analysis across your entire codebase. It produces a range of reports and dashboards, including a code-complexity score (revealing how intricate or maintainable your code is), open-source component analysis (detecting dependencies, license status, outdated or vulnerable libraries), security analysis (identifying potential vulnerabilities, insecure configurations or risky dependencies), and a “cost-to-replicate” valuation, estimating how much effort or resources it would take to rebuild or replace the software from scratch.

The Fastest Code Analysis, Hands Down. 40X faster scan times so developers never have to wait for results after submitting pull requests. The Most Accurate Results. Qwiet AI has the highest OWASP Benchmark score, which is nearly triple the commercial average and more than double the 2nd highest score. Developer-Centric Security Workflows. 96% of developers report that disconnected security and development workflows inhibit their productivity. Implementing developer-centric AppSec workflows decreases mean-time-to-remediation (MTTR), typically by 5X - enhancing both security and developer productivity. Automatically Find Business Logic Flaws in Dev. Identify vulnerabilities that are unique to your code base before they reach production. Achieve Compliance. Demonstrate and maintain compliance with security and privacy regulations such as SOC 2, PCI-DSS, GDPR, and CCPA.

Brakeman is a security scanner for Ruby on Rails applications. Unlike many web security scanners, Brakeman looks at the source code of your application. This means you do not need to set up your whole application stack to use it. Once Brakeman scans the application code, it produces a report of all security issues it has found. Brakeman requires zero setup or configuration once it is installed. Just run it. Because all Brakeman needs is source code, Brakeman can be run at any stage of development: you can generate a new application with rails new and immediately check it with Brakeman. Since Brakeman does not rely on spidering sites to determine all their pages, it can provide more complete coverage of an application. This includes pages which may not be ‘live’ yet. In theory, Brakeman can find security vulnerabilities before they become exploitable. Brakeman is specifically built for Ruby on Rails applications, so it can easily check configuration settings for best practices.

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.

Sonatype’s Vulnerability Scanner is a tool designed to help developers identify security risks and compliance issues in their open-source components. It provides users with a comprehensive Software Bill of Materials (SBOM), which lists all open-source dependencies and highlights vulnerabilities and license risks. The platform offers real-time scanning and actionable insights, allowing teams to assess the severity of risks and implement fixes swiftly. With automated scans and detailed reports, Sonatype’s Vulnerability Scanner helps organizations secure their applications, manage third-party dependencies, and maintain compliance across their software environments.