TMS deprecation notice
The story behind a difficult decision.
Threats Manager Studio has been recently deprecated, and it will not receive any major update. Minor updates will be provided until December 2025. Support via GitHub will completely cease in June 2026. This site will be taken offline in June 2027. From that point on, the only way to access TMS code and binaries will be its GitHub repo.
Please consider adopting alternative tools. A partial list is available in the OWASP Threat Modeling Cheat Sheet.
A free Threat Modeling tool providing superior efficiency, effectiveness, and extensibility.
Threats Manager Studio 