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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 811 Application Security tools, 252 free and 559 commercial.
Accuracy and depth improve over time. Last reviewed Jul 2026. Is something off? Reach out.
Agentless cloud API discovery, posture management, and drift detection.
NodeSecure is a cybersecurity project that provides security monitoring and analysis capabilities specifically designed for Node.js applications.
JAADAS is a powerful tool for static analysis of Android applications, providing features like API misuse analysis and inter-procedure dataflow analysis.
A static analysis tool that detects Common Weakness Enumerations (CWEs) in ELF binaries across multiple CPU architectures using Ghidra-based disassembly and various analysis techniques.
A tool that checks for hijackable packages in NPM and Python Pypi registries
A lightweight library for device identification and fingerprinting, written in Kotlin and 100% crash-free.
A tool to prevent prototype poisoning in JSON parsing.
A Fastify plugin that implements HTTP security headers through a wrapper around the helmet library to protect web applications from common vulnerabilities.
A Fastify plugin that provides utilities and middleware to protect web applications against Cross-Site Request Forgery (CSRF) attacks.
An unofficial Python API that enables programmatic searching, browsing, and downloading of Android apps from Google Play Store.
A command-line tool for downloading Android APK files from the Appland platform via npm installation.
Docker file for building Androguard dependencies with an optional interactive shell environment.
ELFcrypt encrypts ELF binaries with obfuscation and anti-debugging features to protect against reverse engineering.
AppMon is a Frida-based automated framework for monitoring and tampering with system API calls across macOS, iOS, and Android applications.
idb is a tool that simplifies iOS penetration testing and security research tasks, available in both command line and GUI versions.
SecretScanner is a standalone tool that scans container images and filesystems to detect approximately 140 types of unprotected secrets and sensitive credentials.
DOMPurify is a fast XSS sanitizer for HTML, MathML, and SVG.
A vulnerable web site in NodeJS for testing security source code analyzers.
OWASP WrongSecrets is an educational game that teaches proper secrets management by demonstrating common mistakes through interactive challenges across various deployment platforms.
TerraGoat is a deliberately vulnerable Terraform repository that demonstrates common cloud infrastructure misconfigurations for training and testing security tools.
Checkov is a static analysis tool that scans infrastructure as code and performs software composition analysis to detect security misconfigurations and vulnerabilities in cloud infrastructure and dependencies.
OpenRASP is a runtime application self-protection solution that integrates into application servers to monitor and block threats in real-time using context-aware instrumentation.
811 tools across 14 specializations · 252 free, 559 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.
Ranked by real community upvotes and saves — never for sale. Featured placement is always labeled.