PrePoMax
University of Maribor
A complete graphical interface for the CalculiX solver, turning it from something you run from a text file into finite element software you can actually work in. Import geometry, mesh it, define materials, boundary conditions and loads with the mouse, run, and view results in the same window. It is the closest thing to a commercial FEA experience available with no licence cost, and it is the reason many users no longer touch the CalculiX command line.
Download and installation
PrePoMax runs on Windows and is distributed as a ZIP file from the University of Maribor’s official site. Unzip and run — no installer and no registration. The CalculiX solver is already included.
Frequently asked questions
Is PrePoMax free for commercial use?
Yes. It is open-source software and may be used on any project.
What is the difference between PrePoMax and CalculiX?
CalculiX is the solver. PrePoMax is the graphical interface that builds the model, runs CalculiX and displays the results.
Full guide: PrePoMax and CalculiX — The Complete Guide. Compare alternatives: Free FEA software.
Ratings & Reviews
| Licence type | Completely Free, Open Source |
|---|---|
| Licence terms | Open-source licence. Free for any purpose including commercial work, with no time limit, no registration and no licence key. |
| Platforms | Windows |
| Engineering field | Civil Engineering, Mechanical Engineering |
| Tool type | Simulation & FEA |
| Vendor site | prepomax.fs.um.si |
This link goes to the vendor site. EngiFree hosts no installers and distributes no cracked versions.
Last verified: 2026-09-02
