FeenoX

FeenoX is ranked #3 of 91 in physics simulation software on The Geeks Club. It runs on API, Linux, Self-hosted, Web. There is a free plan.

FeenoX plans and pricing

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FeenoX Free GNU GPLv3+ open-source software no graphical interface · targets GNU/Linux · generic binaries omit MUMPS and MPI seamplex.com · 28 Sept 2026

Free Free seamplex.com · 28 Sept 2026

Compared on physics simulation software

Free plan: Yes
Paid from: Free
Delivery mode: desktop
Lesson library: No
Authoring tools: Yes
Assessment tools: No
3D visuals: Yes
Offline access: Yes
Data export: Yes

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FeenoX

Free open source: FeenoX is free in both the no-cost and freedom senses, and open source.
Plain-text inputs: Problems use syntactically sugared, self-descriptive English-like plain-text input files.
Gmsh mesh format: Input meshes use Gmsh's .msh format.
MPI parallelization: FeenoX supports MPI parallelization.
Engineering problems: It supports mathematical problems, ODEs/DAEs, and finite-element PDEs.
Ubuntu support: FeenoX is available in Ubuntu 25.04 onward.
GNU/Linux binaries: Generic GNU/Linux binaries are provided as statically linked executables.
Binary limitations: Generic binaries do not support MUMPS or MPI and use only basic optimization flags.
Open-source libraries: It uses GNU GSL, SUNDIALS, PETSc, and SLEPc for computational tasks.
GitHub support: Users can ask for help on the GitHub discussions page.
Contributions welcome: Contributions from hackers and academics are welcome, especially new PDEs and formulations.
Purpose: FeenoX is a cloud-first computational engineering tool for solving engineering problems with one or many computers in parallel.
Problem types: It solves dynamical systems expressed as ODEs or DAEs, heat conduction, thermo-mechanical problems, modal analysis, neutron diffusion and neutron transport.
Input model: Problems are defined in self-descriptive English-like plain-text input files, so changing a problem does not require recompiling.
Price from: Free

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Where it ranks on The Geeks Club

Best Physics Simulation Software in 2026#3 of 91

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Sources

seamplex.com/feenox/· checked 28 Sept 2026
seamplex.com/feenox/doc/feenox-manual.html· checked 28 Sept 2026
seamplex.com/feenox/doc/whitepaper/· checked 28 Sept 2026
seamplex.com/feenox/download.html· checked 28 Sept 2026
seamplex.com/feenox/README4engineers.html· checked 28 Sept 2026