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Application security is the discipline of finding and fixing the flaws that live in the code, dependencies, and runtime behavior of the software your organization builds and ships. It spans the whole lifecycle: catching vulnerabilities before merge with static testing (SAST), software composition analysis, secrets detection, and threat modeling, then guarding what is live with dynamic and interactive testing (DAST/IAST), API security, web application firewalls, bot management, and runtime self-protection (RASP). For most security leaders this is where the hardest tradeoff sits, because the people introducing risk are developers moving fast, and the controls that work are the ones that fit into the pipeline rather than fight it. Supply chain security, application security posture management (ASPM), mobile app security, and secure code training round out the category, and together they are how teams shift left without grinding shipping to a halt.
We cover 808 Application Security tools, 252 free and 556 commercial.
Accuracy and depth improve over time. Last reviewed Jul 2026. Is something off? Reach out.
AI-powered reverse engineering tool for analyzing compiled binaries
Managed web app security scanning service covering OWASP Top 10 vulnerabilities
DAST tool for automated web app and API vulnerability scanning and testing
Software supply chain security platform with AI-powered scanning to detect malicious code
A Python script that scans file systems to identify hardcoded credentials
Real-time AI-powered code security tool for IDE vulnerability detection & fix
Open-source WAF using intelligent semantic analysis and machine learning-based detection
A role-based application security training platform that provides developers with courses and hands-on labs to build secure development expertise and meet compliance requirements.
Mobile security testing platform for Android and iOS apps with SAST and DAST
Application delivery controller for optimizing app performance and security
Cloud-based WAF protecting websites from attacks, DDoS, and exploits
IDE plugin for SAST and SCA scanning with real-time vulnerability detection
Universal artifact repository & software supply chain security platform
An enterprise-scale dynamic application security testing (DAST) platform that provides automated vulnerability scanning and security assessment for web applications.
IAST solution for automated web app security testing in DevOps pipelines
Web application firewall protecting enterprise web apps and APIs
API security platform with discovery, WAF, bot protection, and DDoS defense
WAF protecting web apps and APIs using ML and contextual AI
AppSec platform for supply chain security, SBOM analysis & vuln mgmt
AI-powered code analysis platform for security, quality, and developer insights
Unified AppSec platform with SAST, SCA, DAST, IaC, ASPM & AI remediation
SCA tool for code scanning, license identification, and SBOM generation
SCA platform for managing open source vulnerabilities across SDLC
808 tools across 14 specializations · 252 free, 556 commercial
Static Application Security Testing
Static Application Security Testing (SAST) tools that analyze source code for vulnerabilities using taint and dataflow analysis during development.
Secrets Detection
Tools that find and scan for leaked secrets, credentials, API keys, and tokens hardcoded in source code, repositories, and CI/CD pipelines.
Software Composition Analysis
Software Composition Analysis (SCA) tools for identifying vulnerabilities and license risks in open source dependencies and third-party libraries, with SBOM generation.
Common questions about Application Security tools, selection guides, pricing, and comparisons.
Application security is the practice of protecting software from vulnerabilities across its lifecycle, from the code developers write to the dependencies they import to the running app exposed to users. It covers pre-deployment testing like SAST, SCA, and threat modeling, and runtime defenses like WAFs, API security, and RASP. The goal is shipping secure software without slowing delivery to a crawl.
API security is a specialized slice of application security focused on the endpoints applications expose to each other and to clients. Broader AppSec covers the entire codebase, dependencies, and runtime; API security narrows in on authentication, authorization, schema abuse, and business-logic attacks against APIs. As architectures move to microservices and headless apps, API security has grown into its own discipline rather than a feature of general scanners.
SAST analyzes source code or binaries without running the application, catching flaws early but generating false positives. DAST tests the running application from the outside, like an attacker, finding real exploitable issues but later in the cycle. IAST instruments the app during testing to combine both views with better accuracy. Most mature programs use more than one, since each catches what the others miss.
Start with where your risk concentrates: a company shipping APIs needs different coverage than one shipping mobile apps. Prioritize tools that fit your developers' existing pipeline and IDE, because adoption beats raw detection depth. Watch the noise: false positive rates and triage burden quietly kill AppSec programs. Many teams now consolidate scanners under an ASPM layer rather than buying point tools per testing type.
Open-source tools like Semgrep, OWASP ZAP, and Trivy form a credible foundation, and plenty of teams run real programs on them. They tend to need more in-house tuning, lack the centralized triage and policy enforcement of commercial platforms, and rarely cover the full lifecycle alone. Most organizations land on a blend: open source for core scanning, commercial tooling where consolidation, support, and posture management matter at scale.