The free COMSOL alternative for WPT.
COMSOL Multiphysics and the AC/DC Module are excellent general-purpose FEM tools — and heavyweight for early-stage wireless power coil exploration. AirInduct Sim covers the inductive WPT regime that drives most COMSOL coil-design projects, runs in your browser, and starts at $0.
- No floating license server, no per-seat AC/DC Module fee.
- No mesh refinement loop before the first inductance result.
- Eight WPT-specific topology presets (Helmholtz, DTC, square, cross) instead of building geometry from primitives.
- Runs on a Chromebook, an iPad, a phone — anywhere a browser runs.
- Public REST API and MCP server for AI agents — no LiveLink or Java API license.
Coupled multi-physics (thermal · structural · acoustic · EM), nonlinear ferrite cores, full-wave radiation, and bespoke PDE problems. AirInduct gets you to a candidate coil design fast; COMSOL is where the production-validation lap belongs.
Build and sweep your coil in AirInduct, export geometry and parameter sets, then drop them into COMSOL for the final coupled-physics certification pass. The two are complementary, not redundant.
See the full comparison matrix or try the Helmholtz simulator.