Best ThreatModeler Nexus Alternatives in 2026

20 platforms from threat modeling software ranked against ThreatModeler Nexus on the same published basis.

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

ThreatModeler Nexus alternatives compared

#PlatformScoreFree planFromRuns on
2ThreatOpus7.3Free plan£129.99/moAPI, Web
3ThreatTree7.3Free plan$29/moAPI, Web
4CAIRIS7.2Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
5IriusRisk7.2Free planFreeAPI, self-hosted, Web
6AWS Threat Composer6.9No—API, Browser, Linux, Mac, self-hosted, Web, Windows
7CYMETRIS6.7No€99/moAPI, self-hosted, Web
8SD Elements6.7No$6,250/moAPI, self-hosted, Web
9ThreatZ6.7No$8.33/moAPI, self-hosted, Web
10OWASP Threat Dragon5.8Free planFreeLinux, Mac, self-hosted, Web, Windows
11ThreatForge5.8Free planFreeLinux, Mac, Web, Windows
12ADTool5.5No——
13itemis SECURE5.4No—Web, Windows
14KAVACH5.4No—Windows
15Dethernety5.1Free planFreeself-hosted, Web
16EnCo SOX ATA5.1No——
17Microsoft Threat Modeling Tool5.1No—Windows
18AutoSec TARA Suite5.0No—Web
19pytm5.0Free planFreeLinux, Mac, Windows
20Threagile5.0No—Web
21DevArmor4.8No—Web
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Questions about ThreatModeler Nexus alternatives

What is the best alternative to ThreatModeler Nexus?

ThreatOpus, number 2 in threat modeling software with a score of 7.3 out of 10. The others here: ThreatTree, CAIRIS, IriusRisk and 16 more.

What is the best free alternative to ThreatModeler Nexus?

ThreatOpus is the best-ranked alternative with a free plan. 8 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, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.