OpenSees is a software framework for developing applications to simulate the performance of structural and geotechnical systems subjected to earthquakes.
Publisher’s description
What is OpenSees?
OpenSees by OpenSees is proprietary Windows software. It is written in C++.
Installation and requirements
The publisher provides Portable installers for 64-bit Windows. The main installer is 1 KB. It runs without installation (portable).
Popularity and file types
The source code on GitHub (OpenSees/OpenSees) has 839 stars.
Project description on GitHub: “OpenSees Source Code Repository”
Pros / Cons
Pros
- Portable: runs without installation
- Small download (1 KB)
Cons
- Proprietary licence: check the terms and price
- No native ARM64 build
- The official download link did not answer at the last check
In short: OpenSees is a Windows tool for 64-bit PCs.
Is OpenSees safe to download?
- The file is served by opensees.berkeley.edu, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
5E37A5A95C645E31C7700CE6EC5B08C178BAEDC83241F7CBE10EF10CF6A4FB41· Open the VirusTotal report for this hash - The link did not answer when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 3.8.0Latest | February 18, 2026 | 1 KB | 64-bit ZIP |
Install from the command line
Silent install ›winget install --id OpenSees.OpenSees -eRelated guide: How to use winget: install and update apps
Information
- Publisher
- OpenSees
- Licence
- Proprietary
- Price
- See the publisher’s site
- Source code
- github.com/OpenSees/OpenSees
- Written in
- C++
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Version
- 3.8.0
- Released
- February 18, 2026
- Added to the catalogue
- June 11, 2026
- Versions listed
- 1
- GitHub stars
- 839
- GitHub forks
- 827
- Website
- opensees.berkeley.edu
- winget ID
- OpenSees.OpenSees
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is OpenSees free?
OpenSees is proprietary (closed-source) software (licence: Proprietary). Whether it costs money depends on the edition: check the publisher’s site for prices and free tiers.
Is OpenSees safe to download?
The download comes from opensees.berkeley.edu, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install OpenSees with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Does OpenSees run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Can I use OpenSees without administrator rights?
Yes, it is portable: unpack and run it.