Best oPhysics Alternatives in 2026

20 apps from physics simulation software ranked against oPhysics on the same published basis.

  1. 1oPhysics vs OpenSim
  2. 2oPhysics vs SimFlow
  3. 3oPhysics vs ngspice
  4. 4oPhysics vs FeenoX
  5. 5oPhysics vs COMSOL Multiphysics
  6. 6oPhysics vs Xcos
  7. 7oPhysics vs FEST-3D
  8. 8oPhysics vs MPTRAC
  9. 9oPhysics vs myPhysicsLab
  10. 10oPhysics vs Open Source Physics
  11. 11oPhysics vs FDTDX
  12. 12oPhysics vs DynamicalSystems.jl
  13. 13oPhysics vs SimScale
  14. 14oPhysics vs Ansys Fluent
  15. 15oPhysics vs OpenFOAM
  16. 16oPhysics vs PyAutoLens
  17. 17oPhysics vs FEATool Multiphysics
  18. 18oPhysics vs Kinetic.jl
  19. 19oPhysics vs Step
  20. 20oPhysics vs ASCEND

oPhysics alternatives compared

#AppScoreFree planFromRuns on
1OpenSim9.1Free planFreeAPI, Linux, Mac, Windows
2SimFlow9.1Free plan€666.67/moLinux, Mac, Web, Windows
3ngspice8.8Free planFreeLinux, Mac, self-hosted, Windows
4FeenoX8.8Free planFreeAPI, Linux, self-hosted, Web
5COMSOL Multiphysics8.7No—API, Linux, Mac, self-hosted, Web, Windows
6Xcos8.7Free planFreeWindows, Mac, Linux
7FEST-3D8.7Free planFreeLinux, Mac
8MPTRAC8.6Free planFreeLinux, self-hosted, Web
9myPhysicsLab8.6Free planFreeLinux, Mac, self-hosted, Web, Windows
10Open Source Physics8.5No—Web, Windows, Mac, Linux, iOS, Android
11FDTDX8.5Free planFreeLinux, self-hosted
12DynamicalSystems.jl8.5Free planFreeLinux, Mac, Windows
13SimScale8.4No—Web
14Ansys Fluent8.1No——
15OpenFOAM8.1No—Windows, Mac, Linux
16PyAutoLens8.0Free planFreeLinux, Mac, Windows
17FEATool Multiphysics7.8No—Windows, Linux, Mac
18Kinetic.jl7.8No—API, Linux
19Step7.7No—Linux
20ASCEND7.7No—Windows, Mac, Linux
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Questions about oPhysics alternatives

What is the best alternative to oPhysics?

OpenSim, number 1 in physics simulation software with a score of 9.1 out of 10. The others here: SimFlow, ngspice, FeenoX and 16 more.

What is the best free alternative to oPhysics?

OpenSim is the best-ranked alternative with a free plan. 11 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on.