OWASP Threat Dragon vs ThreatModeler CloudModeler

OWASP Threat Dragon creates threat-model diagrams and records threats associated with diagram elements as part of a secure development lifecycle. Diagrams can represent processes, data stores, actors, data flows and trust boundaries. It supports STRIDE, LINDDUN, CIA, CIA-DIE, DIE and PLOT4ai threat categories. A rule engine can propose threats and mitigations based on properties of diagram elements. Threat Dragon can run as a containerized, self-hosted web application or as a desktop app with installers for Windows, macOS and Linux. The web app supports local file storage and configurable access to GitHub, GitHub Enterprise, Google Drive, Bitbucket, Bitbucket Enterprise and GitLab; the desktop app saves models locally. The project lists Apache License 2.0. Analytics are disabled by default and require server configuration. The project is volunteer-maintained and notes that immediate investigation or response to incidents is not always possible. Threat Dragon is listed at free, with no paid plans or usage limits stated.

ThreatModeler CloudModeler has no write-up on Specifiction yet; its figures are above.