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Best Microsoft Threat Modeling Tool Alternatives in 2026

Updated

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

  1. 1
    CAIRIS Free plan apiLinuxMacself-hostedWeb Free6.6
    Microsoft Threat Modeling Tool vs CAIRIS
  2. 2
    OWASP Threat Dragon Free plan LinuxMacself-hostedWebWin Free6.6
    Microsoft Threat Modeling Tool vs OWASP Threat Dragon
  3. 3
    ThreatForge Free plan LinuxMacWebWin Free6.6
    Microsoft Threat Modeling Tool vs ThreatForge
  4. 4
    IriusRisk Free plan apiself-hostedWeb Free6.4
    Microsoft Threat Modeling Tool vs IriusRisk
  5. 5
    ThreatModeler Nexus Free plan apiself-hostedWeb $333.33/mo6.4
    Microsoft Threat Modeling Tool vs ThreatModeler Nexus
  6. 6
    ThreatOpus Free plan apiWeb £129.99/mo6.4
    Microsoft Threat Modeling Tool vs ThreatOpus
  7. 7
    ThreatTree Free plan apiWeb $29/mo6.4
    Microsoft Threat Modeling Tool vs ThreatTree
  8. 8
    AWS Threat Composer apiextensionLinuxMacself-hosted 5.7
    Microsoft Threat Modeling Tool vs AWS Threat Composer
  9. 9
    itemis SECURE WebWin 5.5
    Microsoft Threat Modeling Tool vs itemis SECURE
  10. 10
    pytm WinMacLinux 5.3
    Microsoft Threat Modeling Tool vs pytm
  11. 11
    AutoSec TARA Suite Web 5.2
    Microsoft Threat Modeling Tool vs AutoSec TARA Suite
  12. 12
    Dethernety Web 5.2
    Microsoft Threat Modeling Tool vs Dethernety
  13. 14
    Threagile Web 5.2
    Microsoft Threat Modeling Tool vs Threagile
  14. 15
    ADTool 5.1
    Microsoft Threat Modeling Tool vs ADTool
  15. 16
    EnCo SOX ATA 5.1
    Microsoft Threat Modeling Tool vs EnCo SOX ATA
  16. 17
    CYMETRIS apiself-hostedWeb €99/mo5.0
    Microsoft Threat Modeling Tool vs CYMETRIS
  17. 18
    ThreatZ Free trial apiself-hostedWeb $8.33/mo5.0
    Microsoft Threat Modeling Tool vs ThreatZ
  18. 19
    TSpec 4.9
    Microsoft Threat Modeling Tool vs TSpec
  19. 20
    KAVACH 4.8
    Microsoft Threat Modeling Tool vs KAVACH
  20. 21
    SD Elements apiself-hostedWeb $6,250/mo4.8
    Microsoft Threat Modeling Tool vs SD Elements

Microsoft Threat Modeling Tool alternatives compared

#AppScoreFree planFromRuns on
1CAIRIS6.6Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
2OWASP Threat Dragon6.6Free planFreeLinux, Mac, self-hosted, Web, Windows
3ThreatForge6.6Free planFreeLinux, Mac, Web, Windows
4IriusRisk6.4Free planFreeAPI, self-hosted, Web
5ThreatModeler Nexus6.4Free plan$333.33/moAPI, self-hosted, Web
6ThreatOpus6.4Free plan£129.99/moAPI, Web
7ThreatTree6.4Free plan$29/moAPI, Web
8AWS Threat Composer5.7No—API, Browser, Linux, Mac, self-hosted, Web, Windows
9itemis SECURE5.5No—Web, Windows
10pytm5.3No—Windows, Mac, Linux
11AutoSec TARA Suite5.2No—Web
12Dethernety5.2No—Web
14Threagile5.2No—Web
15ADTool5.1No——
16EnCo SOX ATA5.1No——
17CYMETRIS5.0No€99/moAPI, self-hosted, Web
18ThreatZ5.0No$8.33/moAPI, self-hosted, Web
19TSpec4.9No——
20KAVACH4.8No——
21SD Elements4.8No$6,250/moAPI, self-hosted, 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 6.6 out of 10. The others here: OWASP Threat Dragon, ThreatForge, IriusRisk 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 free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.