GNU FisicaLab
GNU FisicaLab: A focused free desktop tool for 2D mechanics and thermodynamics work. Ranked #10 of 89 in Physics Simulation Software by our editors (7.9/10); pricing: Free plan; best for open-source kinematics and thermodynamics work.
At a glance
- Editor score7.9 / 10
- PricingFree plan
- Best forOpen-source kinematics and thermodynamics work
- Free planYes
- Paid fromFree
- Delivery modeDesktop
- Facts checked20 Sep 2026
Where it wins
- Covers 2D kinematics, dynamics, statics and free-body diagrams
- Includes calorimetry, ideal-gas, expansion and thermodynamics modules
- Free, open-source desktop software with step-by-step examples
Where it doesn't
- Focused on two-dimensional work rather than three-dimensional visuals
- Desktop delivery limits it to Windows and Linux environments
- Available binaries are labeled as previous versions
Our verdict on GNU FisicaLab
GNU FisicaLab is free, open-source desktop software for solving physics problems. It is aimed at learners who want to focus on physical concepts while the application handles mathematical details. Its scope covers two-dimensional point kinematics, circular kinematics, statics, dynamics, free-body diagrams, calorimetry, ideal gases, expansion and thermodynamics. Users assemble problems through a graphical chalkboard, enter problem elements through a graphical interface, and work with mathematical operations and functions in data fields. The result is a specialized environment for educational physics work rather than a general-purpose simulation platform.
Its strongest fit is the combination of mechanics and thermodynamics modules in one focused application. Static and dynamic free-body diagram construction supports force-analysis work, while the calorimetry, ideal-gas, expansion and thermodynamics modules extend the software beyond introductory motion problems. SI and English unit systems add flexibility for different classroom conventions. Step-by-step examples and downloadable documentation also support guided learning, problem construction and reference use. Learners and educators who need a desktop authoring tool for structured physics exercises should find this breadth useful, especially when open-source access matters.
The trade-off is a deliberately narrow visual and platform scope. GNU FisicaLab is desktop software for Windows and Linux, and its category specifications identify no three-dimensional visuals. That makes it better suited to 2D mechanics, diagrams, calculations and thermodynamics than to spatial simulation or visually intensive modeling. The official site lists version 0.4.0 from October 2023, while the download page labels available binaries as previous versions. Choose it for free, open-source problem solving with a focused educational workflow; consider another option for 3D visualization or a broader simulation environment.
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GNU FisicaLab pricing
GNU FisicaLab fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Delivery mode | Desktop |
| Lesson library | Yes |
| Authoring tools | Yes |
| Assessment tools | Not verified |
| 3D visuals | No |
| Offline access | Not verified |
| Data export | Not verified |
| Deployment | Desktop |
| Platforms | Windows, Linux |
| Support | Community, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | gnu.org |
| Facts checked | 20 Sep 2026 |
Alternatives to GNU FisicaLab
- COMSOL MultiphysicsA broad desktop environment for coupled physics, engineering models, and custom simulation apps.9.4
- Ansys FluentA deep CFD and HPC environment for demanding industrial simulation work.9.3
- SimScaleA broad browser-based multiphysics platform with flexible cloud workflows and tiered access.9.1
See all GNU FisicaLab alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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