COPASI is a software application for simulation and analysis of biochemical networks and their dynamics.
COPASI is a stand-alone program that supports models in the SBML standard and can simulate their behavior using ODEs, SDEs, or Gillespie's stochastic simulation algorithm. Arbitrary discrete events can be included in such simulations. COPASI provides a set analysis methods and parameter estimation.
Publisher’s description
What is COPASI?
COPASI by copasi.org is open-source Windows software in the 3d & cad category. It is written in C++.
Installation and requirements
The publisher provides EXE (Inno Setup) installers for 64-bit Windows. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 4.44.295, released on April 22, 2025. The version history goes back to April 22, 2025: 5 releases, all linked to the official files. That is about 3.3 releases a year. The last update is more than a year old.
Popularity and file types
The source code on GitHub (copasi/COPASI) has 130 stars. On Windows it registers 1 file type, including .cps. Similar programs include PrusaSlicer, MeshLab and Ultimaker Cura.
Project description on GitHub: “COPASI is a software application for simulation and analysis of biochemical networks and their dynamics.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
Cons
- No native ARM64 build
- Installation needs administrator rights
- No update for more than a year
In short: COPASI is an open-source 3d & cad tool for 64-bit PCs. Updates have slowed down. Administrators can deploy it unattended.
Is COPASI safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
FE9B423D27A95DEF2483CEF2F4AAE1890F850A80DC03AA29164B859E69B9B890· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 5 versions ›5 versions over 2 years · about 3.3 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 4.44.295Latest | April 22, 2025 | — | 64-bit EXE (Inno Setup) |
| Build-311 | October 22, 2026 | — | 64-bit EXE (Inno Setup) |
| Build-309 | August 13, 2026 | — | 64-bit EXE (Inno Setup) |
| Build-300 | January 23, 2026 | — | 64-bit EXE (Inno Setup) |
| Build-298 | April 22, 2025 | — | 64-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id COPASI.COPASI -eCOPASI-4.44.295-Windows.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Information
- Publisher
- copasi.org
- Category
- 3D & CAD
- Licence
- Artistic-2.0
- Price
- Free
- Source code
- github.com/copasi/COPASI
- Written in
- C++
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (Inno Setup)
- Version
- 4.44.295
- Released
- April 22, 2025
- Added to the catalogue
- April 22, 2025
- Versions listed
- 5
- Updates / year
- 3.3
- GitHub stars
- 130
- GitHub forks
- 47
- Website
- copasi.org
- winget ID
- COPASI.COPASI
File types it opens (1)
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is COPASI free?
Yes. COPASI is open-source software under the Artistic-2.0 licence.
Is COPASI safe to download?
The download comes from github.com, 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 COPASI 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.
Can COPASI be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does COPASI run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of COPASI?
The versions page lists all 5 versions with links to their official installer files, back to April 22, 2025.
What are alternatives to COPASI?
PrusaSlicer, MeshLab, Ultimaker Cura, NetLogo and OpenToonz. The alternatives page compares them.
