Best Application Security Software for JavaScript

Aikido is your comprehensive software security hub, designed to safeguard everything you create, host, and manage—from application security to penetration testing. Ideal for teams of all sizes, Aikido empowers organizations to deliver secure software solutions, earning the trust of industry leaders like Revolut, Deel, The Premier League, Tines, n8n, SoundCloud, and over 50,000 others. With Aikido, developers can focus on what they do best: building exceptional products.

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 deep program analysis to deliver intelligent security testing that finds real vulnerabilities while dramatically reducing false positives. Unlike traditional SAST tools that rely on pattern matching, ZeroPath understands code context, business logic, and developer intent. This enables identification of sophisticated security issues including business logic flaws, broken authentication, authorization bypasses, and complex dependency vulnerabilities. Our comprehensive security suite covers the application security lifecycle: 1. AI-powered SAST 2. Software Composition Analysis with reachability analysis 3. Secrets detection and validation 4. Infrastructure as Code scanning 5. Automated PR reviews 6. Automated patch generation and more... ZeroPath integrates seamlessly with GitHub, GitLab, Bitbucket, Azure DevOps and many more. The platform handles codebases with millions of lines across Python, JavaScript, TypeScript, Java, Go, Ruby, Rust, PHP, Kotlin and more. Our research team has been successful in finding vulnerabilities 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.

Jscrambler stands out as a pioneer in Client-Side Protection, offering a comprehensive platform designed to safeguard all JavaScript within web and hybrid applications from data breaches and the theft of intellectual property. It is the first company to integrate sophisticated polymorphic JavaScript obfuscation with meticulous third-party tag protection, all within a cohesive Client-Side Protection and Compliance Platform. The Code Integrity feature from Jscrambler protects first-party JavaScript using cutting-edge obfuscation techniques and unique runtime safeguards. Meanwhile, the Webpage Integrity solution addresses the threats and vulnerabilities associated with third-party tags, ensuring adherence to PCI DSS v4.0 standards. Additionally, Jscrambler's Iframe Integrity provides Payment Service Providers (PSPs) with the tools to offer effective protection, maintain PCI DSS compliance, and qualify merchants for SAQ A. By bringing together these multiple layers of security, Jscrambler enables businesses to secure customer information, avert data leaks, and uphold compliance with regulations like PCI DSS v4.

Debricked's tool allows for greater use of Open Source while minimizing the risks. This makes it possible to maintain a high development pace while remaining secure. The service uses state-of-the-art machine learning to ensure that data quality is excellent and can be instantly updated. Debricked is a unique Open Source Management tool that combines high precision (over 90% in supported language) with flawless UX and scalable automation. Debricked has just released Open Source Select, a brand new feature that allows open source projects to be compared, evaluated, and monitored to ensure quality and community health.

SonarQube Server serves as a self-hosted solution for ongoing code quality assessment, enabling development teams to detect and address bugs, vulnerabilities, and code issues in real time. It delivers automated static analysis across multiple programming languages, ensuring that the highest standards of quality and security are upheld throughout the software development process. Additionally, SonarQube Server integrates effortlessly with current CI/CD workflows, providing options for both on-premise and cloud deployments. Equipped with sophisticated reporting capabilities, it assists teams in managing technical debt, monitoring progress, and maintaining coding standards. This platform is particularly well-suited for organizations desiring comprehensive oversight of their code quality and security while maintaining high performance levels. Furthermore, SonarQube fosters a culture of continuous improvement within development teams, encouraging proactive measures to enhance code integrity over time.

Snyk is the leader in developer security. We empower the world’s developers to build secure applications and equip security teams to meet the demands of the digital world. Our developer-first approach ensures organizations can secure all of the critical components of their applications from code to cloud, leading to increased developer productivity, revenue growth, customer satisfaction, cost savings and an overall improved security posture. Snyk is a developer security platform that automatically integrates with a developer’s workflow and is purpose-built for security teams to collaborate with their development teams.

Mend.io delivers the first AI native application security platform built for software created by both humans and machines. It empowers organizations to secure AI generated code and embedded AI components like models, agents, MCPs, and RAG pipelines. The unified platform brings together comprehensive capabilities including AI security, SAST, SCA, container scanning, and Mend Renovate providing development and security teams complete visibility into risks across their codebase. With AI powered remediation and prioritization workflows, teams are enabled to quickly resolve issues and reduce risk. With a simple, predictable price model, eliminating per-module costs and minimal reliance on expensive professional services Mend.io is a scalable, proactive, developer-friendly platform for modern AppSec—all in a single platform.

Backslash Security is the governance and visibility platform built for organizations where AI coding tools are already part of how software gets built. GitHub Copilot, Cursor, Windsurf, Claude Code, and Gemini CLI have fundamentally changed the development lifecycle — and the security controls most organizations rely on were not designed for this environment. Backslash provides a comprehensive AI coding tool inventory and policy enforcement across the full AI coding spectrum, giving security teams visibility into every active tool and the risk introduced before it reaches production. This includes vibe coding security — risk detection purpose-built for vulnerability patterns in AI-generated code that traditional scanners are not equipped to catch. As AI coding agents grow more capable, they increasingly operate with access to external services, internal data, and organizational infrastructure through MCP servers. Over-permissioned agents and misconfigured MCP connections create data leakage pathways — exposing sensitive organizational data to AI models without security team awareness or enforcement controls. These are active exposure points, not theoretical risks. Backslash addresses this directly. The platform maps every MCP server connection, identifies over-permissioned AI agent configurations, and enforces least-privilege access before data leakage occurs. Security teams gain full visibility into what AI agents can access and where permissions exceed what the task requires. For security leaders governing an environment that moved faster than their controls, Backslash is the missing layer — built from the ground up for AI-native development, not retrofitted from a previous generation of tooling.

SecureStack can detect common security issues in your CI/CD pipeline and prevent them from getting into your applications. SecureStack automatically embeds security with every git push. Our technology is designed to check every aspect of your application security. We look for missing security controls and correct encryption. We also test the effectiveness of your WAF. All this was done in less than 60 seconds. You can see what hackers can see when they look at your applications. Compare your development, staging, and production environments to quickly identify critical differences and find solutions to high-priority issues. We help you to decompose your web app so you can see all the resources used behind the scenes.

Modern software development must be as fast as the business. The modern AppSec toolbox lacks integration, which creates complexity that slows down software development life cycles. Contrast reduces the complexity that hinders today's development teams. Legacy AppSec uses a single-size-fits all approach to vulnerability detection and remediation that is inefficient, costly, and expensive. Contrast automatically applies the most efficient analysis and remediation technique, greatly improving efficiency and effectiveness. Separate AppSec tools can create silos that hinder the collection of actionable intelligence across an application attack surface. Contrast provides centralized observability, which is crucial for managing risks and capitalizing upon operational efficiencies. This is both for security and development teams. Contrast Scan is a pipeline native product that delivers the speed, accuracy and integration required for modern software development.

Reduce Mean Time to Detection (MTTD) and Mean Time to Recovery (MTTR) with comprehensive coverage achievable within minutes of deployment. Employ a complete DevSecOps toolchain that spans all your environments, ensuring the implementation and gathering of evidence as part of an ongoing security strategy. This solution is unified and de-duplicated across all orchestrated layers, allowing you to add thousands of checks through a single line of code, enhanced by AI capabilities. Designed with a strong focus on security, it effectively sidesteps prevalent security errors and vulnerabilities, while being adept at understanding contemporary technologies. Every feature is accessible through a REST API, making it easily integrable with CI/CD systems, and it operates in a lightweight and rapid manner. You have the option to self-host for total code governance and transparency, or to utilize a source-available binary exclusively within your own CI/CD pipeline. Opting for a source-available solution grants you complete control and transparency over your security measures. The initial setup is straightforward, necessitating no software installation, and it supports a wide variety of programming languages. This tool is capable of detecting thousands of code and infrastructure-related issues, with the count continually rising. Users can review detected issues, categorize them as false positives, and collaborate effectively on resolutions, fostering a more secure development environment. Continuous updates ensure that the tool remains aligned with emerging security threats and technology advancements.

GitHub Advanced Security empowers developers and security professionals to collaborate effectively in addressing security debt while preventing new vulnerabilities from entering code through features such as AI-driven remediation, static analysis, secret scanning, and software composition analysis. With Copilot Autofix, code scanning identifies vulnerabilities, offers contextual insights, and proposes solutions within pull requests as well as for past alerts, allowing teams to manage their application security debt more efficiently. Additionally, targeted security campaigns can produce autofixes for up to 1,000 alerts simultaneously, significantly lowering the susceptibility to application vulnerabilities and zero-day exploits. The secret scanning feature, equipped with push protection, safeguards over 200 types of tokens and patterns from a diverse array of more than 150 service providers, including hard-to-detect secrets like passwords and personally identifiable information. Backed by a community of over 100 million developers and security experts, GitHub Advanced Security delivers the necessary automation and insights to help teams release more secure software on time, ultimately fostering greater trust in the applications they build. This comprehensive approach not only enhances security but also streamlines workflows, making it easier for teams to prioritize and address potential threats.

The Fastest Code Analysis. 40X faster scan speeds so developers don't have to wait long for results after submitting a pull request. The Most Accurate Result. Qwiet AI is the only AI with the highest OWASP benchmark score. This is more than triple the commercial average, and more than twice the second highest score. Developer-Centric Security Processes. 96% of developers say that disconnected security and developer workflows hinder their productivity. Implementing developer-centric AppSec workflows decreases mean-time-to-remediation (MTTR), typically by 5X - enhancing both security and developer productivity. Automated Business Logic Flaws in Dev. Identify vulnerabilities unique to your codebase before they reach production. Achieve compliance. Maintain and demonstrate compliance with privacy and security regulations such as SOC 2 PCI-DSS GDPR and CCPA.

Modern development teams are empowered to identify, fix, and prevent vulnerabilities in source code, open-source libraries, secret management, cloud configuration, and other areas. Modern development teams are empowered to identify, fix, and prevent security flaws in their applications. Continuous security scanning speeds up feature shipping and reduces cycle time. Our expert system reduces false alarms and only informs you about security issues that are relevant. Software that is consistently scanned across all product lines will be more secure. GuardRails integrates seamlessly with modern Version Control Systems such as GitLab and Github. GuardRails automatically selects the appropriate security engines to run based upon the languages found in a repository. Each rule is carefully curated to determine whether it has a high level security impact issue. This results in less noise. A system has been developed that detects false positives and is constantly improved to make it more accurate.

BlueClosure is capable of analyzing any codebase developed using JavaScript frameworks such as Angular.js, jQuery, Meteor.js, and React.js, among others. It employs a technique known as Realtime Dynamic Data Tainting. The BlueClosure Detect feature utilizes a sophisticated JavaScript instrumentation engine that comprehensively comprehends the code. By harnessing our unique technology, the BC engine can scrutinize any codebase, regardless of its obfuscation. Additionally, BlueClosure's scanning technology automates the process of scanning entire websites, providing the quickest method for evaluating large enterprise portals filled with complex JavaScript content, similar to how a tester would interact with a browser. Moreover, it achieves near-zero false positives due to its data validation and context-awareness capabilities, enhancing the effectiveness of its dynamic runtime tainting model on strings by discerning whether a client-side vulnerability can be exploited. This ensures that organizations can trust the results of their scans to address potential security issues effectively.

ActiveState delivers Intelligent Remediation for vulnerability management, which enables DevSecOps teams to not only identify vulnerabilities in open source packages, but also to automatically prioritize, remediate, and deploy fixes into production without breaking changes, ensuring that applications are truly secured. We do this by helping you: - Understand your vulnerability blast radius so you can see every vulnerabilities’ true impact across your organization. This is driven by our proprietary catalog of 40M+ open source components that’s been built and tested for over 25 years. - Intelligently prioritize remediations so you can turn risks into action. We help teams move away from alert overload with AI-powered analysis that detects breaking changes, streamlines remediation workflows, and accelerates security processes. - Precisely remediate what matters - unlike other solutions, ActiveState doesn’t just suggest what you should do, we enable you to deploy fixed artifacts or document exceptions so you can truly drive down vulnerabilities and secure your software supply chain. The ActiveState platform centers on open source languages packaged as runtimes that can be deployed in various form factors. Low-to-no CVE container images are also available for plug-in and play needs.

Our platform uses a variety of security techniques, including feedback-based fuzz testing and coverage-guided fuzz testing, in order to generate millions upon millions of test cases that trigger difficult-to-find bugs deep in your application. This white-box approach helps to prevent edge cases and speed up development. Advanced fuzzing engines produce inputs that maximize code coverage. Powerful bug detectors check for errors during code execution. Only uncover true vulnerabilities. You will need the stack trace and input to prove that you can reproduce errors reliably every time. AI white-box testing is based on data from all previous tests and can continuously learn the inner workings of your application. This allows you to trigger security-critical bugs with increasing precision.

Compile embeddings from past attacks in a vector database to identify and avert similar threats down the line. Employ a specialized model to scrutinize incoming prompts for potential attack patterns. Incorporate canary tokens within prompts to monitor for any data leaks, enabling the system to catalog embeddings for incoming prompts in the vector database and thwart future attacks. Additionally, preemptively screen for harmful inputs before they reach the model, ensuring a more secure analysis process. This multi-layered approach enhances the overall defense mechanism against potential security breaches.

The Checkmarx Software Security Platform serves as a unified foundation for managing a comprehensive array of software security solutions, encompassing Static Application Security Testing (SAST), Interactive Application Security Testing (IAST), Software Composition Analysis (SCA), along with application security training and skill enhancement. Designed to meet the diverse requirements of organizations, this platform offers a wide range of deployment options, including private cloud and on-premises configurations. By providing multiple implementation methods, it allows clients to begin securing their code right away, eliminating the lengthy adjustments often needed for a singular approach. The Checkmarx Software Security Platform elevates the benchmark for secure application development, delivering a robust resource equipped with top-tier capabilities that set it apart in the industry. With its versatile features and user-friendly interface, the platform empowers organizations to enhance their security posture effectively and efficiently.

A novel approach to security tailored to modern software development processes has emerged. By embedding security directly into the development toolchain, issues can be addressed within minutes of installation. Contrast agents actively monitor the code and provide insights from within the application, empowering developers to identify and resolve vulnerabilities without the need for specialized security personnel. This shift allows security teams to concentrate on governance and oversight. Additionally, Contrast Assess features an advanced agent that equips the application with intelligent sensors for real-time code analysis. This internal monitoring significantly reduces false positives, which often hinder both developers and security teams. By integrating seamlessly into existing software life cycles and aligning with the tools that development and operations teams currently utilize, including direct compatibility with ChatOps, ticketing platforms, and CI/CD pipelines, Contrast Assess simplifies the security process and enhances team efficiency. As a result, organizations can maintain a robust security posture while streamlining their development efforts.