Best Microsoft Threat Modeling Tool Alternatives in 2026

20 tools from threat modeling software ranked against Microsoft Threat Modeling Tool on the same published basis.

  1. 1Microsoft Threat Modeling Tool vs CAIRIS
  2. 2Microsoft Threat Modeling Tool vs OWASP Threat Dragon
  3. 3Microsoft Threat Modeling Tool vs ThreatOpus
  4. 4Microsoft Threat Modeling Tool vs AWS Threat Composer
  5. 5Microsoft Threat Modeling Tool vs ThreatForge
  6. 6Microsoft Threat Modeling Tool vs ThreatModeler Nexus
  7. 7Microsoft Threat Modeling Tool vs ThreatTree
  8. 8Microsoft Threat Modeling Tool vs IriusRisk
  9. 9Microsoft Threat Modeling Tool vs ThreatZ
  10. 10Microsoft Threat Modeling Tool vs itemis SECURE
  11. 11Microsoft Threat Modeling Tool vs CYMETRIS
  12. 12Microsoft Threat Modeling Tool vs pytm
  13. 13Microsoft Threat Modeling Tool vs SD Elements
  14. 14Microsoft Threat Modeling Tool vs Dethernety
  15. 16Microsoft Threat Modeling Tool vs ADTool
  16. 17Microsoft Threat Modeling Tool vs AutoSec TARA Suite
  17. 18Microsoft Threat Modeling Tool vs KAVACH
  18. 19Microsoft Threat Modeling Tool vs Threagile
  19. 20Microsoft Threat Modeling Tool vs EnCo SOX ATA
  20. 21Microsoft Threat Modeling Tool vs DevArmor

Microsoft Threat Modeling Tool alternatives compared

#ToolScoreFree planFromRuns on
1CAIRIS7.5Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
2OWASP Threat Dragon7.4Free planFreeLinux, Mac, self-hosted, Web, Windows
3ThreatOpus7.4Free plan£129.99/moAPI, Web
4AWS Threat Composer7.2No—API, Browser, Linux, Mac, self-hosted, Web, Windows
5ThreatForge7.2Free planFreeLinux, Mac, Web, Windows
6ThreatModeler Nexus7.1Free plan$333.33/moAPI, self-hosted, Web
7ThreatTree6.9Free plan$29/moAPI, Web
8IriusRisk6.8Free planFreeAPI, self-hosted, Web
9ThreatZ6.8No$8.33/moAPI, self-hosted, Web
10itemis SECURE6.7No—Web, Windows
11CYMETRIS6.5No€99/moAPI, self-hosted, Web
12pytm6.1No—Windows, Mac, Linux
13SD Elements5.9No$6,250/moAPI, self-hosted, Web
14Dethernety5.8No—Web
16ADTool5.7No——
17AutoSec TARA Suite5.7No—Web
18KAVACH5.7No—Windows
19Threagile5.7No—Web
20EnCo SOX ATA5.6No——
21DevArmor5.4No—Web
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Questions about Microsoft Threat Modeling Tool alternatives

What is the best alternative to Microsoft Threat Modeling Tool?

CAIRIS, number 1 in threat modeling software with a score of 7.5 out of 10. The others here: OWASP Threat Dragon, ThreatOpus, AWS Threat Composer and 16 more.

What is the best free alternative to Microsoft Threat Modeling Tool?

CAIRIS is the best-ranked alternative with a free plan. 7 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.