OWASP

    OWASP/threat-dragon

    An open source threat modeling tool from OWASP

    web
    owasp
    owasp-threat-dragon
    sdlc
    threat-dragon
    threat-modeling
    JavaScript
    Apache-2.0
    1.7K stars
    413 forks
    1.7K GitHub watchers
    Updated Nov 2, 2026
    View on GitHub

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    Where it stands

    Rank, growth pace and release cadence relative to everything GStars tracks.

    No releases in the last 90 days; the most recent was 177 days ago, with 94 contributors on GitHub.

    Use Cases & Benefits

    • Provides a free, open-source, cross-platform tool for creating threat modeling diagrams and managing associated threats.
    • Offers an intuitive, accessible interface with integration options for GitHub, Bitbucket, and GitLab, enhancing collaboration and flexibility.
    • Use for designing data flow diagrams and identifying security threats during software development lifecycle planning.
    • Use for teams needing to document and mitigate security risks in applications with version control integration.
    • Use for security professionals seeking a community-supported tool aligned with OWASP standards for threat modeling and risk assessment.

    Should you depend on it?

    License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.

    License

    Apache 2.0

    Permissive: commercial use, modification and redistribution are allowed with attribution; includes an explicit patent grant from contributors.

    Community files

    • README: present
    • Contributing guide: present
    • Code of conduct: present

    Watch-outs

    No watch-outs from GStars' checks.

    General guidance from repository metadata, not legal advice. How we score

    From the README

    OWASP Threat Dragon is a free, open-source, cross-platform threat modeling application. It is used to draw threat modeling diagrams and to list threats for elements in the diagram. Mike Goodwin created Threat Dragon as an open source community project that provides an intuitive and accessible way to model threats.

    Threat Dragon is designed to be accessible for various types of teams, with an emphasis on flexibility and simplicity. The Project has OWASP Production status and follows the values and principles of the threat modeling manifesto.

    This program is free software: you can redistribute it and/or modify it under the terms of the Apache 2.0 License.

    Access the latest version of Threat Dragon on the demo website and refer to the documentation pages.

    Also well worth watching the video provided by the OWASP Spotlight series.

    The github release area contains Threat Dragon from version 1.3 to the latest versions 2.x. Previous releases are from Mike Goodwin's original repository.

    Excerpt from the OWASP/threat-dragon README on GitHub (Apache-2.0 license). © its authors.Read the full README on GitHub

    Daily snapshots

    Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots

    Forks

    413+20

    Open issues

    102-6

    Compared with peers in Web

    Fastest-growing repositories GStars tracks in this cohort for the week of Nov 1, by 7-day star growth

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    Category median48.4K+6.2K44—

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