Best Physics Simulation Software in 2026
Updated
In short: OpenSim is ranked #1 of 34 as of 3 October 2026, ahead of COMSOL Multiphysics and SimScale. The best-ranked option with a free plan is SimFlow. The lowest first paid tier on this page is SimFlow at €666.67/mo.
From computational modeling to visual learning activities, physics simulation tools serve different needs across education and technical work. Compare 3D visuals, authoring and assessment tools, then consider data export, delivery mode and offline access for the way you plan to use them. Lesson libraries, free plans and paid starting prices provide further points of comparison. OpenSim, COMSOL Multiphysics and SimScale lead the named entries, with SimFlow and OpenFOAM also included near the top. The right fit depends on whether you need to build lessons, evaluate learners, inspect simulated behavior or move results into another workflow.
34 physics simulation software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Delivery mode | |
|---|---|---|---|---|---|---|---|---|
| 1 |  OpenSim | 8.5 | RecognisedAPIDocumented | Free | Yes | — | desktop | View |
| 2 | COMSOL Multiphysics | 8.4 | RecognisedAPIDocumented | — | No | — | desktop | View |
| 3 | SimScale | 7.4 | RecognisedAPIDocumented | — | Yes | — | web | View |
| 4 | SimFlow | 7.2 | RecognisedAPIDocumented | €666.67/mo | Yes | $8,000/mo | desktop | View |
| 5 | OpenFOAM | 7.0 | RecognisedAPIDocumented | — | Yes | — | desktop | View |
| 6 |  myPhysicsLab | 7.0 | RecognisedAPIDocumented | Free | Yes | — | hybrid | View |
| 7 |  Ansys Fluent | 6.9 | RecognisedAPIDocumented | — | — | — | hybrid | View |
| 8 | FEATool Multiphysics | 6.5 | RecognisedAPIDocumented | — | No | — | desktop | View |
| 9 | ASCEND | 6.5 | RecognisedAPIDocumented | — | Yes | — | desktop | View |
| 10 |  Step | 6.5 | RecognisedAPIDocumented | — | Yes | — | desktop | View |
| 11 |  Xcos | 6.5 | RecognisedAPIDocumented | Free | Yes | — | desktop | View |
| 12 |  Algodoo | 6.5 | RecognisedAPIDocumented | — | Yes | — | hybrid | View |
| 13 |  ngspice | 6.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 14 |  Open Source Physics | 6.4 | RecognisedAPIDocumented | — | — | — | hybrid | View |
| 15 | 3JCN Physics Simulation | 6.3 | RecognisedAPIDocumented | Free | Yes | — | web | View |
| 16 |  oPhysics | 6.2 | RecognisedAPIDocumented | — | Yes | — | web | View |
| 17 |  SimEvents | 6.1 | RecognisedAPIDocumented | — | No | — | desktop | View |
| 18 |  SimuPhysics | 6.1 | RecognisedAPIDocumented | — | Yes | — | web | View |
| 19 |  Interactive Physics | 6.0 | RecognisedAPIDocumented | — | No | — | desktop | View |
| 20 |  Physics Classroom Physics Interactives | 6.0 | RecognisedAPIDocumented | — | Yes | — | web | View |
| 21 |  The Physics Aviary | 6.0 | RecognisedAPIDocumented | — | Yes | — | web | View |
| 22 |  PhysSandbox | 6.0 | RecognisedAPIDocumented | Free | Yes | — | web | View |
| 23 |  PhysicsPlayground | 5.9 | RecognisedAPIDocumented | Free | Yes | — | web | View |
| 24 |  STEPP | 5.8 | RecognisedAPIDocumented | — | Yes | — | web | View |
| 25 |  Walter Fendt Apps on Physics | 5.7 | RecognisedAPIDocumented | — | Yes | — | web | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which physics simulation software is ranked first on Inferse?
OpenSim is ranked #1 of 34 with a score of 8.5. COMSOL Multiphysics is second and SimScale third.
How many of these have a free plan?
7 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, SimFlow has the lowest first paid tier we found: €666.67/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.