Best AWS Threat Composer Alternatives in 2026
Updated
20 platforms from threat modeling software ranked against AWS Threat Composer on the same published basis.
- 1AWS Threat Composer vs ThreatOpus
- 2AWS Threat Composer vs Dethernety
- 3AWS Threat Composer vs CAIRIS
- 4AWS Threat Composer vs OWASP Threat Dragon
- 5AWS Threat Composer vs pytm
- 6AWS Threat Composer vs ThreatModeler Nexus
- 7AWS Threat Composer vs Threagile
- 8AWS Threat Composer vs ThreatForge
- 10AWS Threat Composer vs IriusRisk
- 11AWS Threat Composer vs ThreatTree
- 12AWS Threat Composer vs ThreatZ
- 13AWS Threat Composer vs EnCo SOX ATA
- 14AWS Threat Composer vs ADTool
- 15AWS Threat Composer vs itemis SECURE
- 16AWS Threat Composer vs AutoSec TARA Suite
- 17AWS Threat Composer vs KAVACH
- 18AWS Threat Composer vs CYMETRIS
- 19AWS Threat Composer vs SD Elements
- 20AWS Threat Composer vs TSpec
- 21AWS Threat Composer vs Microsoft Threat Modeling Tool
AWS Threat Composer alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | ThreatOpus | 7.6 | Free plan | £129.99/mo | API, Web |
| 2 | Dethernety | 7.5 | Free plan | Free | self-hosted, Web |
| 3 | CAIRIS | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 4 | OWASP Threat Dragon | 7.2 | Free plan | Free | Linux, Mac, self-hosted, Web, Windows |
| 5 | pytm | 7.0 | Free plan | Free | Linux, Mac, Windows |
| 6 | ThreatModeler Nexus | 7.0 | Free plan | $333.33/mo | API, self-hosted, Web |
| 7 | Threagile | 6.9 | Free plan | Free | API, Linux, self-hosted, Web |
| 8 | ThreatForge | 6.9 | Free plan | Free | Linux, Mac, Web, Windows |
| 10 | IriusRisk | 6.7 | Free plan | Free | API, self-hosted, Web |
| 11 | ThreatTree | 6.7 | Free plan | $29/mo | API, Web |
| 12 | ThreatZ | 6.6 | No | $8.33/mo | API, self-hosted, Web |
| 13 | EnCo SOX ATA | 6.5 | No | — | Web, Windows |
| 14 | ADTool | 6.3 | No | — | — |
| 15 | itemis SECURE | 6.3 | No | — | Web, Windows |
| 16 | AutoSec TARA Suite | 6.2 | No | — | self-hosted, Web |
| 17 | KAVACH | 6.2 | No | — | Windows |
| 18 | CYMETRIS | 6.0 | No | €99/mo | API, self-hosted, Web |
| 19 | SD Elements | 5.8 | No | $6,250/mo | API, self-hosted, Web |
| 20 | TSpec | 5.8 | No | — | — |
| 21 | Microsoft Threat Modeling Tool | 5.7 | No | — | Windows |
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Questions about AWS Threat Composer alternatives
What is the best alternative to AWS Threat Composer?
ThreatOpus, number 1 in threat modeling software with a score of 7.6 out of 10. The others here: Dethernety, CAIRIS, OWASP Threat Dragon and 16 more.
What is the best free alternative to AWS Threat Composer?
ThreatOpus is the best-ranked alternative with a free plan. 10 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.