User Support and Contributions

User Support

Help can be requested from TOPAS developers and other users at the User Forum. Note that you must login as a registered user before you can access the forums.

User Contributions

  • Feedback and feature requests are best communicated via the User Forum described above.

  • If you would like to share your TOPAS extensions or parameter files with other users, please get in touch

  • Contributions to this documentation website are also most welcome, but does require a GitHub account:

    • Click “Edit on GitHub” in the top-right corner of the page you wish to edit
    • This takes you to the page source at
    • Click the pencil icon to fork the repository and edit the page source
    • The source format is reStructuredText
    • After making your changes, open a pull request