STKO for OpenSees FREE Academic License

Are you ready to try STKO for free?

Create an account, or login to download the Free Academic License!

See the Purchase Page for more information on the license types.

System Requirements

  • 64-bit processor architecture
  • 4 GB memory
  • At least 500 MB disk space available for installation
  • Video Card supporting at least OpenGL 3.0 or higher and GLSL (OpenGL Shading Language) 1.20 or higher



    1. Login or Create a New account

    2. Click the START button in your USER AREA

    3. DOWNLOAD and INSTALL the software from this page following the STKO Installation Guide

    4. When prompted, insert the customer ID listed in your USER AREA

    Login or Create New Account

    What is the Free License?

    We want students to have more access and increased interaction with OpenSees didactically. With the Free academic license, they will be able to build models, run analyses, and experiment in STKO. This license is also perfect for university students looking to self-study the basics of OpenSees.

    From now on, all downloads of the 30-day STKO Trial licenses will automatically convert to the Free Academic license upon expiration. Users will be able to continue learning the software and modeling without interruption.

    To learn more about our Licensing Options, please see the license comparison chart on our Purchase Page.

    If you have questions about the purchase process, STKO licenses, or the trial, visit the STKO FAQ page.

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