myPhysicsLab vs OPEM
myPhysicsLab
myphysicslab.comOPEM
ecsim.siteSide by side
| Figure | myPhysicsLab | OPEM |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | — | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 1 |
| Spec score · Physics Simulation Software | 8.8 (#4) | 7.7 (#45) |
| Delivery mode | hybrid | desktop |
| Free plan | Yes | Yes |
| License | The software is open source under the Apache 2.0 License, and its source code is available on GitHub. | The GitHub repository lists an MIT license. |
| Offline access | Yes | Yes |
| Purpose | myPhysicsLab provides interactive, real-time animated physics simulations that users can change by dragging objects and adjusting parameters. | OPEM models and evaluates proton-exchange membrane fuel-cell performance using static and dynamic models. |
| Support | The author identifies himself as Erik Neumann and provides an email address on the home page; no support plan is listed there. | The README directs users to file an issue or email [email protected] for bug reports, and mentions a Discord server. |
Plans
In their own words
myPhysicsLab
myPhysicsLab is a free, open-source project with interactive physics simulations and JavaScript classes for building animated models. Simulations run in real time, and users can drag objects or change parameters such as gravity. Its library includes examples such as pendulums, springs, colliding blocks, roller coasters, billiards, and molecular models. Many simulation pages explain the mathematics behind the models. Users can customize simulations with EasyScript or JavaScript in a browser and text editor, then share a setup through a URL that embeds EasyScript. Numeric results can be retrieved through VarsHistory, JavaScript, or collision-data scripts. Downloadable versions can be used offline. The source code is available on GitHub under the Apache 2.0 License. The simulations do not specify measurement units, so values need to be used consistently within each model. Building from source requires TypeScript, esbuild, Perl, and GNU Make. The project began in 2001, and its maker is based in Seattle, Washington.