Best Free Dynamic Application Security Testing (DAST) Software

Compare the Top Free Dynamic Application Security Testing (DAST) Software as of April 2025

What is Free Dynamic Application Security Testing (DAST) Software?

Dynamic Application Security Testing (DAST) software is software that identifies and addresses vulnerabilities in web applications during runtime. Unlike static testing, which analyzes source code, DAST evaluates the security of running applications by simulating real-world attacks to detect issues such as SQL injection, cross-site scripting (XSS), and authentication flaws. This software helps security teams identify weaknesses in live applications and prioritize fixes based on the severity of potential threats. DAST tools are typically used during development, staging, or pre-production stages to ensure that applications are secure before being deployed to production. Compare and read user reviews of the best Free Dynamic Application Security Testing (DAST) software currently available using the table below. This list is updated regularly.

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    Aikido Security

    Aikido Security

    Aikido Security

    Secure your stack with Aikido's code-to-cloud security platform. Find and fix vulnerabilities fast & automatically. Aikido’s DAST scanner shows where your app is most vulnerable so you can close security gaps before attackers find them. Monitor your App & APIs to find vulnerabilities like SQL injection, XSS, and CSRF — both on the surface and via authenticated DAST.
    Starting Price: Free
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  • 2
    GitLab

    GitLab

    GitLab

    GitLab is a complete DevOps platform. With GitLab, you get a complete CI/CD toolchain out-of-the-box. One interface. One conversation. One permission model. GitLab is a complete DevOps platform, delivered as a single application, fundamentally changing the way Development, Security, and Ops teams collaborate. GitLab helps teams accelerate software delivery from weeks to minutes, reduce development costs, and reduce the risk of application vulnerabilities while increasing developer productivity. Source code management enables coordination, sharing and collaboration across the entire software development team. Track and merge branches, audit changes and enable concurrent work, to accelerate software delivery. Review code, discuss changes, share knowledge, and identify defects in code among distributed teams via asynchronous review and commenting. Automate, track and report code reviews.
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    Starting Price: $29 per user per month
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    Crashtest Security

    Crashtest Security

    Crashtest Security

    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.
    Starting Price: €35 per month
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    VulnSign

    VulnSign

    VulnSign

    VulnSign is an online vulnerability scanner that is fully automated, customer-orient configurable and has advanced features. VulnSign can scan any type of web application, regardless of the technology it was built with. It uses a Chrome based crawling engine and can identify vulnerabilities in legacy, and custom built, modern HTML5, Web 2.0 applications and Single Page Applications (SPA). It also has vulnerability checks for popular frameworks. The VulnSign vulnerability scanner is very easy to use and most of the pre-scan configuration can be automated. It is an all in one vulnerability management solution, with multi user support and integration capabilities. Though to test it all you need to do is specify the URL and credentials (to scan password protected websites), and launch a vulnerability scan.
    Starting Price: $49/month/team
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    Contrast Security

    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
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    SOOS

    SOOS

    SOOS

    Industry-low pricing for SCA, DAST and SBOM management. SOOS SCA gives you everything you need in an SCA solution for one low price. SOOS DAST integrates into your build pipeline and consolidates DAST test results with SCA vulnerability scans in a single powerful web dashboard. Assembling a comprehensive SBOM from third party software or open source components is easy with SOOS SBOM Manager. Ingest, manage, and continually monitor third party SBOMs. Add SBOMs generated by your in house software developers using SOOS SCA. Use our API to access any of our 54M+ open source SBOMs. SOOS makes it easy to comply with government SBOM regulations and mandates.
    Starting Price: $0 per month
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    StackHawk

    StackHawk

    StackHawk

    StackHawk tests your running applications, services, and APIs for security vulnerabilities that your team has introduced as well as exploitable open source security bugs. Automated test suites in CI/CD are the norm for today’s engineering teams. Why should application security be any different? StackHawk is built to check for vulnerabilities in your pipeline. Built for developers is more than a tagline. It is the ethos of StackHawk. Application security has shifted left and developers need a tool for reviewing and fixing security findings. With StackHawk, application security can keep up with the pace of today’s engineering teams. Find vulnerabilities at the pull request and quickly push out fixes, all while yesterday’s security tools are waiting for someone to kick off a manual scan. A security tool that developers love to use, powered by the world’s most widely used open source security scanner.
    Starting Price: $99 per month
  • 8
    ThreatWatch

    ThreatWatch

    ThreatWatch

    Stay informed on emerging threats using real-time, machine curated threat intelligence. Detect and prioritize threats up to 3 months earlier than leading scanning solutions without redundant scanning or agents. Use Attenu8, our AI platform to prioritize your threats. Secure your DevOps pipeline against open source vulnerabilities, malware, code secrets and configuration issues. Secure your infrastructure, network and IOT devices and any other assets by modeling them as virtual assets. Discover and manage your assets easily with a simple open source CLI. Decentralize security functions using real-time alerts. Integrate with MSTeams, Slack, JIRA, ServiceNow and other ecosystems using our powerful API and SDK. Stay ahead of your adversaries. Get informed on emerging malware, vulnerabilities, exploits, patches and remediations in real-time using our AI powered, machine curated threat intelligence.
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    Bright Security

    Bright Security

    Bright Security

    Bright Security is a developer-centric Dynamic Application Security Testing (DAST) solution that helps organizations ship secure applications and APIs quickly and cost-effectively. Its approach enables quick and iterative scans to identify critical security vulnerabilities early in the SDLC without compromising on quality or delivery speed. Bright empowers AppSec teams to provide governance for securing APIs and web apps while allowing developers to take ownership of security testing and remediation work. Unlike legacy DAST solutions built for AppSec professionals, which are complex to deploy and find vulnerabilities late in the development process, Bright's DAST solution is optimized for the DevOps world. It can be deployed as early as the Unit Testing phase and run throughout the SDLC, learning and optimizing from every scan. By enabling organizations to detect and remediate vulnerabilities early in the SDLC, Bright reduces risk at a lower cost and effort.
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    AppMap

    AppMap

    AppMap

    Runtime code reviews for every code change in the code editor and in CI. Catch runtime performance, security, and stability problems while you code, before they hit production. Collaborate on a team member’s application behavior problem without having to replicate their environment. Automate AppMap generation in CI, get alerts for performance and security flaws, and compare observability and alerts across branches and teams. Run AppMap in CI to automate observability, create OpenAPI docs, and much more. AppMap code reviews link to rich resources that enable you to uncover the root causes of unexpected behavior. Sequence diagrams diffs vividly showcase behavioral changes in your code.
    Starting Price: $15 per user per month
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