Best CAIRIS Alternatives in 2026
Updated
20 apps from threat modeling software ranked against CAIRIS on the same published basis.
- 2CAIRIS vs OWASP Threat Dragon
- 3CAIRIS vs ThreatForge
- 4CAIRIS vs IriusRisk
- 5CAIRIS vs ThreatModeler Nexus
- 6CAIRIS vs ThreatOpus
- 7CAIRIS vs ThreatTree
- 8CAIRIS vs AWS Threat Composer
- 9CAIRIS vs itemis SECURE
- 10CAIRIS vs pytm
- 11CAIRIS vs AutoSec TARA Suite
- 12CAIRIS vs Dethernety
- 13CAIRIS vs Microsoft Threat Modeling Tool
- 14CAIRIS vs Threagile
- 15CAIRIS vs ADTool
- 16CAIRIS vs EnCo SOX ATA
- 17CAIRIS vs CYMETRIS
- 18CAIRIS vs ThreatZ
- 19CAIRIS vs TSpec
- 20CAIRIS vs KAVACH
- 21CAIRIS vs SD Elements
CAIRIS alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 2 | OWASP Threat Dragon | 6.6 | Free plan | Free | Linux, Mac, self-hosted, Web, Windows |
| 3 | ThreatForge | 6.6 | Free plan | Free | Linux, Mac, Web, Windows |
| 4 | IriusRisk | 6.4 | Free plan | Free | API, self-hosted, Web |
| 5 | ThreatModeler Nexus | 6.4 | Free plan | $333.33/mo | API, self-hosted, Web |
| 6 | ThreatOpus | 6.4 | Free plan | £129.99/mo | API, Web |
| 7 | ThreatTree | 6.4 | Free plan | $29/mo | API, Web |
| 8 | AWS Threat Composer | 5.7 | No | — | API, Browser, Linux, Mac, self-hosted, Web, Windows |
| 9 | itemis SECURE | 5.5 | No | — | Web, Windows |
| 10 | pytm | 5.3 | No | — | Windows, Mac, Linux |
| 11 | AutoSec TARA Suite | 5.2 | No | — | Web |
| 12 | Dethernety | 5.2 | No | — | Web |
| 13 | Microsoft Threat Modeling Tool | 5.2 | No | — | Windows |
| 14 | Threagile | 5.2 | No | — | Web |
| 15 | ADTool | 5.1 | No | — | — |
| 16 | EnCo SOX ATA | 5.1 | No | — | — |
| 17 | CYMETRIS | 5.0 | No | €99/mo | API, self-hosted, Web |
| 18 | ThreatZ | 5.0 | No | $8.33/mo | API, self-hosted, Web |
| 19 | TSpec | 4.9 | No | — | — |
| 20 | KAVACH | 4.8 | No | — | — |
| 21 | SD Elements | 4.8 | No | $6,250/mo | API, self-hosted, Web |
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Questions about CAIRIS alternatives
What is the best alternative to CAIRIS?
OWASP Threat Dragon, number 2 in threat modeling software with a score of 6.6 out of 10. The others here: ThreatForge, IriusRisk, ThreatModeler Nexus and 16 more.
What is the best free alternative to CAIRIS?
OWASP Threat Dragon is the best-ranked alternative with a free plan. 6 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.