# CAPEC alternatives and competitors (2026) The closest CAPEC alternatives are [Heeler Runtime Threat Modeling](https://cybersectools.com/tools/heeler-runtime-threat-modeling), [Avertro Threat Modeling and Simulation](https://cybersectools.com/tools/avertro-threat-modeling-and-simulation) and [Seezo Security Design Reviews and Threat Modeling](https://cybersectools.com/tools/seezo-security-design-reviews). Picking a CAPEC alternative comes down to fit: Threat Modeling coverage, your environment, your integrations and your budget. So each option below shows what it covers, how it deploys, its pricing model and the company behind it. 27 alternatives. Closest matches: Heeler Runtime Threat Modeling, Avertro Threat Modeling and Simulation, Seezo Security Design Reviews and Threat Modeling. ## The product [CAPEC](https://cybersectools.com/tools/capec) CAPEC™ is a comprehensive dictionary of known attack patterns used by adversaries to exploit weaknesses in cyber-enabled capabilities. Category: [Application Security](https://cybersectools.com/categories/application-security) · Pricing model: Free ## CAPEC alternatives and competitors CAPEC is a free [Threat Modeling](https://cybersectools.com/categories/threat-modeling) solution. The closest matches by shared tags and NIST CSF 2.0 coverage are [Heeler Runtime Threat Modeling](https://cybersectools.com/tools/heeler-runtime-threat-modeling), [Avertro Threat Modeling and Simulation](https://cybersectools.com/tools/avertro-threat-modeling-and-simulation), [Seezo Security Design Reviews and Threat Modeling](https://cybersectools.com/tools/seezo-security-design-reviews), [Apiiro AI-Powered Risk Detection](https://cybersectools.com/tools/apiiro-ai-powered-risk-detection), and [GrammaTech ConfINE](https://cybersectools.com/tools/grammatech-confine). All 27 alternatives on this page are ranked the same way. Want a free option? See [free and open source application security solutions](https://cybersectools.com/free), plus free picks in other categories. ## The closest CAPEC alternatives These 8 solutions overlap most with CAPEC. Each one says what the product does and, when the overlap is big enough, which capabilities it shares. ### 1. [Heeler Runtime Threat Modeling](https://cybersectools.com/tools/heeler-runtime-threat-modeling) AI-powered continuous threat modeling for cloud applications in runtime [Threat Modeling](https://cybersectools.com/categories/threat-modeling) · Commercial Key features: 10 listed. See them on the [Heeler Runtime Threat Modeling page](https://cybersectools.com/tools/heeler-runtime-threat-modeling#features). [Heeler Runtime Threat Modeling alternatives](https://cybersectools.com/alternatives/heeler-runtime-threat-modeling) · [CAPEC vs Heeler Runtime Threat Modeling](https://cybersectools.com/compare/capec-vs-heeler-runtime-threat-modeling) ### 2. [Avertro Threat Modeling and Simulation](https://cybersectools.com/tools/avertro-threat-modeling-and-simulation) AI-driven threat modeling & simulation platform using MITRE ATT&CK framework [Threat Modeling](https://cybersectools.com/categories/threat-modeling) · Commercial Key features: 10 listed. See them on the [Avertro Threat Modeling and Simulation page](https://cybersectools.com/tools/avertro-threat-modeling-and-simulation#features). [Avertro Threat Modeling and Simulation alternatives](https://cybersectools.com/alternatives/avertro-threat-modeling-and-simulation) · [CAPEC vs Avertro Threat Modeling and Simulation](https://cybersectools.com/compare/avertro-threat-modeling-and-simulation-vs-capec) ### 3. [Seezo Security Design Reviews and Threat Modeling](https://cybersectools.com/tools/seezo-security-design-reviews) Automated security design review platform for developers [Threat Modeling](https://cybersectools.com/categories/threat-modeling) · Commercial Key features: 6 listed. See them on the [Seezo Security Design Reviews and Threat Modeling page](https://cybersectools.com/tools/seezo-security-design-reviews#features). [Seezo Security Design Reviews and Threat Modeling alternatives](https://cybersectools.com/alternatives/seezo-security-design-reviews) · [CAPEC vs Seezo Security Design Reviews and Threat Modeling](https://cybersectools.com/compare/capec-vs-seezo-security-design-reviews) ### 4. [Apiiro AI-Powered Risk Detection](https://cybersectools.com/tools/apiiro-ai-powered-risk-detection) AI-powered pre-development risk detection for secure-by-design software [Threat Modeling](https://cybersectools.com/categories/threat-modeling) · Commercial Key features: 10 listed. See them on the [Apiiro AI-Powered Risk Detection page](https://cybersectools.com/tools/apiiro-ai-powered-risk-detection#features). [Apiiro AI-Powered Risk Detection alternatives](https://cybersectools.com/alternatives/apiiro-ai-powered-risk-detection) · [CAPEC vs Apiiro AI-Powered Risk Detection](https://cybersectools.com/compare/capec-vs-apiiro-ai-powered-risk-detection) ### 5. [GrammaTech ConfINE](https://cybersectools.com/tools/grammatech-confine) Framework for modeling access control and attack graphs in networked systems [Threat Modeling](https://cybersectools.com/categories/threat-modeling) · Commercial Key features: 10 listed. See them on the [GrammaTech ConfINE page](https://cybersectools.com/tools/grammatech-confine#features). [GrammaTech ConfINE alternatives](https://cybersectools.com/alternatives/grammatech-confine) · [CAPEC vs GrammaTech ConfINE](https://cybersectools.com/compare/capec-vs-grammatech-confine) ### 6. [Curlsek AI Threat Modeling](https://cybersectools.com/tools/curlsek-ai-threat-modeling) AI-driven threat modeling for identifying security risks in design phase [Threat Modeling](https://cybersectools.com/categories/threat-modeling) · Commercial Key features: 8 listed. See them on the [Curlsek AI Threat Modeling page](https://cybersectools.com/tools/curlsek-ai-threat-modeling#features). [Curlsek AI Threat Modeling alternatives](https://cybersectools.com/alternatives/curlsek-ai-threat-modeling) · [CAPEC vs Curlsek AI Threat Modeling](https://cybersectools.com/compare/capec-vs-curlsek-ai-threat-modeling) ### 7. [Prime Security](https://cybersectools.com/tools/prime-security) Scans development plans to identify design flaws before implementation. [Threat Modeling](https://cybersectools.com/categories/threat-modeling) · Commercial Key features: 7 listed. See them on the [Prime Security page](https://cybersectools.com/tools/prime-security#features). [Prime Security alternatives](https://cybersectools.com/alternatives/prime-security) · [CAPEC vs Prime Security](https://cybersectools.com/compare/capec-vs-prime-security) ### 8. [Prime Security Platform](https://cybersectools.com/tools/prime-security-platform) AI-driven platform for automated security design reviews and risk analysis [Threat Modeling](https://cybersectools.com/categories/threat-modeling) · Commercial Key features: 10 listed. See them on the [Prime Security Platform page](https://cybersectools.com/tools/prime-security-platform#features). [Prime Security Platform alternatives](https://cybersectools.com/alternatives/prime-security-platform) · [CAPEC vs Prime Security Platform](https://cybersectools.com/compare/capec-vs-prime-security-platform) ## All 27 products like CAPEC The 8 above, plus: - [C2A Security Cybersecurity DevOps Platform](https://cybersectools.com/tools/c2a-security-cybersecurity-devops-platform): Risk-driven cybersecurity DevOps platform for automotive product lifecycle (Commercial) - [FYEO Enterprise Threat Model](https://cybersectools.com/tools/fyeo-enterprise-threat-model): Structured threat modeling & remediation service for enterprise security risk. (Commercial) - [IriusRisk Threat Modeling Platform](https://cybersectools.com/tools/iriusrisk-threat-modeling-platform): Automated threat modeling platform integrating security into the SDLC. (Commercial) - [IriusRisk Threat Modeling](https://cybersectools.com/tools/iriusrisk-threat-modeling): Threat modeling platform for identifying & managing software security risk by design. (Commercial) - [IriusRisk Threat Modeling Tool - IaC](https://cybersectools.com/tools/iriusrisk-threat-modeling-tool-iac): Auto-generates threat models from IaC files with risk & control mapping. (Commercial) - [PlaxidityX Security AutoDesigner](https://cybersectools.com/tools/plaxidityx-security-autodesigner): AI-automated automotive TARA tool for ISO 21434 & UNR 155 compliance. (Commercial) - [ThreatModeler](https://cybersectools.com/tools/threatmodeler): Enterprise threat modeling platform for apps, cloud, and IaC. (Commercial) - [ArgusEye](https://cybersectools.com/tools/arguseye): AI platform automating threat modeling & compliance for connected device makers. (Commercial) - [TTModeler Pro](https://cybersectools.com/tools/ttmodeler-pro): Threat modeling & risk assessment tool for embedded systems and IoT. (Commercial) - [Avocado Reveal](https://cybersectools.com/tools/avocado-reveal): Automated runtime threat modeling tool for DevSecOps pipelines. (Commercial) - [ThreatCanvas AI](https://cybersectools.com/tools/threatcanvas-ai): AI-powered threat modeling tool that auto-generates models from text, IaC, or diagrams. (Commercial) - [DevArmor Security Guardrails for AI Code Gen](https://cybersectools.com/tools/devarmor-security-guardrails-for-ai-code-gen): Adds org-specific security guardrails to AI code generation tools for compliance. (Commercial) - [DevArmor Continuous Threat Modeling](https://cybersectools.com/tools/devarmor-continuous-threat-modeling): Automated continuous threat modeling platform that enforces security at design time. (Commercial) - [DevArmor HealthTech GRC](https://cybersectools.com/tools/devarmor-healthtech-grc): Automated threat modeling & HIPAA/FDA compliance platform for HealthTech. (Commercial) - [BU Creative Threat Modeling & Risk Scenarios](https://cybersectools.com/tools/bu-creative-threat-modeling-and-risk-scenarios): Consulting service translating business objectives into threat models & risk scenarios. (Commercial) - [Oplane Continuous Threat Modeling](https://cybersectools.com/tools/oplane-continuous-threat-modeling) (Commercial) - [MoreSec STAC](https://cybersectools.com/tools/moresec-stac): AI/RAG-based threat modeling tool for requirements and design stages of SDL (Commercial) - [Prime Security AI Security Architect](https://cybersectools.com/tools/prime-security-ai-security-architect): AI-powered security architect agent for dev teams via chat interfaces (Commercial) - [Atsign AI Architect](https://cybersectools.com/tools/atsign-ai-architect): Visual, spec-driven tool for designing secure-by-design apps on Atsign Platform. (Commercial) ## Alternatives to each of these [Heeler Runtime Threat Modeling alternatives](https://cybersectools.com/alternatives/heeler-runtime-threat-modeling) · [Avertro Threat Modeling and Simulation alternatives](https://cybersectools.com/alternatives/avertro-threat-modeling-and-simulation) · [Seezo Security Design Reviews and Threat Modeling alternatives](https://cybersectools.com/alternatives/seezo-security-design-reviews) · [Apiiro AI-Powered Risk Detection alternatives](https://cybersectools.com/alternatives/apiiro-ai-powered-risk-detection) · [GrammaTech ConfINE alternatives](https://cybersectools.com/alternatives/grammatech-confine) · [Curlsek AI Threat Modeling alternatives](https://cybersectools.com/alternatives/curlsek-ai-threat-modeling) · [Prime Security alternatives](https://cybersectools.com/alternatives/prime-security) · [Prime Security Platform alternatives](https://cybersectools.com/alternatives/prime-security-platform) · [C2A Security Cybersecurity DevOps Platform alternatives](https://cybersectools.com/alternatives/c2a-security-cybersecurity-devops-platform) · [FYEO Enterprise Threat Model alternatives](https://cybersectools.com/alternatives/fyeo-enterprise-threat-model) · [IriusRisk Threat Modeling Platform alternatives](https://cybersectools.com/alternatives/iriusrisk-threat-modeling-platform) · [IriusRisk Threat Modeling alternatives](https://cybersectools.com/alternatives/iriusrisk-threat-modeling) ## Compare CAPEC with - [CAPEC vs Heeler Runtime Threat Modeling](https://cybersectools.com/compare/capec-vs-heeler-runtime-threat-modeling) - [CAPEC vs Avertro Threat Modeling and Simulation](https://cybersectools.com/compare/avertro-threat-modeling-and-simulation-vs-capec) - [CAPEC vs Seezo Security Design Reviews and Threat Modeling](https://cybersectools.com/compare/capec-vs-seezo-security-design-reviews) - [CAPEC vs Apiiro AI-Powered Risk Detection](https://cybersectools.com/compare/capec-vs-apiiro-ai-powered-risk-detection) - [CAPEC vs GrammaTech ConfINE](https://cybersectools.com/compare/capec-vs-grammatech-confine) - [CAPEC vs Curlsek AI Threat Modeling](https://cybersectools.com/compare/capec-vs-curlsek-ai-threat-modeling) - [CAPEC vs Prime Security](https://cybersectools.com/compare/capec-vs-prime-security) - [CAPEC vs Prime Security Platform](https://cybersectools.com/compare/capec-vs-prime-security-platform) ## CAPEC Alternatives FAQ ### What are the closest alternatives to CAPEC? The closest matches to CAPEC by shared tags and NIST CSF 2.0 coverage are Heeler Runtime Threat Modeling, Avertro Threat Modeling and Simulation, Seezo Security Design Reviews and Threat Modeling, Apiiro AI-Powered Risk Detection, and GrammaTech ConfINE. All of them are Threat Modeling products. ### How many alternatives to CAPEC are available? This page shows 27 alternatives to CAPEC, all in the Threat Modeling category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first. ### Is CAPEC free or commercial? CAPEC is a free Threat Modeling product. You can use it at no cost. Only commercial alternatives are listed here. Free and open source products are under /free. ### What type of solution is CAPEC? CAPEC is a Threat Modeling product in the Application Security category. You can compare it with the 27 other Threat Modeling products on this page. --- Source: https://cybersectools.com/alternatives/capec For AI agents: every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md, and any product or compare page has a Markdown copy too (add .md to its URL). More on CAPEC and its alternatives: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=alternatives-md