Best Application Security Software for Linux

From application security to penetration testing, secure everything you build, host, and run with Aikido. Your software security HQ. Built for teams of any size, Aikido helps organizations ship secure software –trusted by Revolut, Deel, The Premier League, Tines, n8n, SoundCloud, and 50k more organizations. Aikido gets developers back to building.

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.

HCL AppScan is a unified application security platform that automates vulnerability detection, testing, triage, and remediation across code, applications, APIs, and LLMs. It combines DAST, SAST, IAST, SCA, API, IaC, and Secrets capabilities with centralized risk visibility, reporting, and compliance. Integrated with IDEs and DevOps workflows, AppScan uses AI-assisted analysis and agentic fix recommendations to help teams prioritize risks, accelerate remediation, strengthen AI code security, and build verifiable trust into every release.

DevOps ain’t easy! We are hearing more and more about the breakdown and friction where Dev meets Ops, so let’s not even talk about all the other shift-left domains that add another layer of complexity in the middle like DevSecOps. Where this comes with the need to implement and integrate dozens of security tools in their SDLC. But what if it doesn’t have to be difficult? Jit's DevSecOps Orchestration Platform allows high-velocity Engineering teams to own product security while increasing dev velocity. With a unified and friendly developer experience, we envision a world where every cloud application is born with Minimal Viable Security (MVS) embedded and iteratively improves by adding Continuous Security into CI/CD/CS.

The software development lifecycle has fundamentally changed. Developers across engineering organizations are using AI coding tools — GitHub Copilot, Cursor, Windsurf, Claude Code, Gemini CLI — at scale. The security controls built for traditional development were not designed for this environment. Backslash Security addresses this gap directly. The platform gives security teams visibility into AI coding tool usage, the code being generated, MCP server connections made by AI agents, and the risk introduced before it reaches production. Core capabilities: AI coding tool inventory and policy enforcement MCP server visibility and access control Vibe coding security — risk detection in AI-generated code Continuous monitoring without disrupting engineering workflows Purpose-built for AI-native development — not a legacy scanner repositioned for a new market. For security leaders governing an environment they didn't design, Backslash provides the visibility and control you need.

With triggers in your CI/CD pipeline, SecureStack can check for common security issues and stop those issues from getting into your applications. SecureStack embeds security automatically with every git push. We built our technology to test every facet of your application security looking for things like missing security controls, are you using encryption correctly; we test the efficacy of your WAF and are your cloud-native components secure and more than 250 other data points. All of that was delivered in less than 60 seconds. See what a hacker can see when they view your applications. Test and compare your development, staging and production environments to quickly find critical differences and understand ways to fix high-priority defects. We help you decompose your web application so you are aware of all the resources your app is using behind the scenes.

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.

ActiveState provides software development teams with the world's most comprehensive library of secure and trusted open source, over 79 million vetted components across all major language ecosystems (e.g., Java, Javascript, Python, R, Go, etc.), including transitive dependencies and OS-level libraries. By building everything from source, we ensure that every component is what it says it is, contains the fewest amount of vulnerabilities, and is continuously remediated. Companies can consume this open source where and when they need it - through their existing artifact repositories, as container images or managed distributions, or via IDPs. When teams transfer their open source responsibility to ActiveState, developers and security teams break free from the endless cycle of vulnerability management. Developers gain confidence knowing their code will make it to production faster and with less friction. Security gains assurance that policy and compliance standards are met by default.

Barracuda Application Protection is an integrated platform that provides comprehensive security for web applications and APIs across on-premises, cloud, or hybrid environments. It combines full Web Application and API Protection (WAAP) functionality with advanced security services to defend against a wide range of threats, including the OWASP Top 10, zero-day attacks, and automated threats. The platform offers features such as machine learning-powered auto-configuration, full-spectrum DDoS protection, advanced bot protection, and client-side protection to safeguard applications from sophisticated attacks. Additionally, it includes a hardened SSL/TLS stack for secure HTTPS front-end, built-in content delivery network (CDN) for optimized performance, and integration with various authentication services for granular access control. Barracuda Application Protection simplifies application security by providing a unified solution that is easy to deploy, configure, and manage.

Imperva Runtime Protection detects and blocks attacks from inside the application. Using patented LangSec techniques which treat data as code, Imperva Runtime Protection has full context of potentially malicious payloads before the application completes its processes. The result? Fast and accurate protection with NO signatures and NO learning mode. Imperva Runtime Protection is a key component of Imperva’s market-leading, full stack application security solution which brings defense-in-depth to a new level.

The Polaris Software Integrity Platform™ brings the power of Black Duck Integrity products and services together into an integrated, easy-to-use solution that enables security and development teams to build secure, high-quality software faster. Elastic capacity and concurrent scanning optimize application scan times. And Polaris scales to support thousands of applications. With Polaris, there is no hardware to deploy or software to update, and no limits on team size or scan frequency. Onboard and start scanning code in minutes, and automate testing easily with built-in SCM, CI, and issue-tracking integrations. Polaris brings our market-leading security analysis engines together in a unified platform, giving you the flexibility to run different tests at different times based on application, project, schedule, or SDLC events.