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PySees
Open Studio

Terms of Use & Privacy

Last updated: October 10, 2026

Simple version

You are responsible for checking whether PySees is appropriate for your project. PySees helps generate OpenSeesPy scripts and visualize results, but you remain fully responsible for model assumptions, engineering decisions, code compliance, and project outcomes.

1. Terms of Use

These Terms govern your use of PySees (the “Service”). By accessing or using PySees, you agree to these Terms.

PySees is a browser-based tool for building, analyzing and postprocessing structural models, and for exporting them to OpenSeesPy. Analyses run in your browser on the Carapace engine; PySees does not run OpenSees itself. PySees is an independent project and not directly affiliated with OpenSees or OpenSeesPy. It does not replace engineering judgment.

2. Use of the Service

  • PySees does not require an account or login.
  • You are responsible for your use of the Service and for keeping copies of your models and scripts.
  • You may not use the Service for unlawful activity, abuse, or attempts to compromise system security.

3. Engineering Responsibility

  • PySees outputs scripts and visualizations “as-is” for your review.
  • You must verify all model inputs, constraints, loading, recorder setup, and interpretation of results.
  • Use of PySees does not create an engineer-client relationship with PySees or its contributors.

4. Open Source and Third-Party Services

PySees may include or depend on third-party services and open source software. Their separate terms and licenses apply. We are not responsible for third-party service availability, content, or policies.

5. Disclaimer of Warranties

To the maximum extent permitted by law, the Service is provided “as is” and “as available,” without warranties of any kind, express or implied, including fitness for a particular purpose, merchantability, non-infringement, and accuracy.

6. Limitation of Liability

To the maximum extent permitted by law, PySees and its contributors are not liable for indirect, incidental, special, consequential, exemplary, or punitive damages, or for loss of profits, data, goodwill, or business interruption arising from use of the Service.

7. Termination

We may suspend or terminate access to the Service at any time if these Terms are violated or if needed to protect users, systems, or legal compliance.

8. Changes to These Terms

We may update these Terms from time to time. Continued use after updates means you accept the revised Terms.

Privacy Notice

This section explains how PySees collects, uses, and handles personal information.

1. Information We Collect

  • PySees has no user accounts and does not collect account identifiers, email addresses, or profile data for authentication.
  • Models and analyses run in your browser. Analysis results are stored locally in your browser, and model definitions and scripts are not uploaded by the app.
  • Hosting providers may process standard request information, such as IP addresses and browser details, when serving the website.

2. How We Use Information

  • Provide and secure the Service.
  • Diagnose issues, improve reliability, and develop features.
  • Respond to support requests and enforce our Terms.

3. Sharing

We do not sell personal information. Website hosting may involve service providers processing request information, or disclosure when required by law.

4. Data Retention and Security

Analysis results remain in browser storage until removed by the app or cleared through your browser settings. Keep your own copies of models and exported scripts. Hosting providers manage any request logs under their own retention and security policies.

5. Your Choices

  • You can clear locally stored results through your browser’s site-data settings.
  • You can export scripts and keep your own project files.
  • You can stop using the Service at any time.

6. International Users

Website requests may be processed wherever the hosting provider operates. Model analysis and result storage take place in your browser.

7. Contact

Questions about these Terms or this Privacy Notice can be sent through our contact page.