Is there an easier free alternative to MIT MEEP for WPT coil design?

Yes — AirInduct Sim is a free, browser-based alternative for the inductive WPT regime. No Python install, no FDTD mesh, eight built-in coil topology presets, and a 100×100 field map in seconds.

When is MEEP still the right tool?

MEEP is the right pick for photonics, full-wave FDTD studies and research where time-domain electromagnetic propagation is the goal. For inductive WPT (sub-30 MHz) AirInduct gets you to a candidate coil far faster.

Do I need to install Python or compile anything?

No — AirInduct runs in any browser. No Python, no MEEP compile, no MPI cluster.

AirInduct Sim

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ALTERNATIVE — MEEP

NO PYTHON INSTALL

NO FDTD MESH

BROWSER-NATIVE

The friendlier free MEEP alternative for WPT.

MIT MEEP is a respected open-source FDTD electromagnetic solver — but it requires Python, a compile, and a manual FDTD mesh. AirInduct Sim covers the inductive WPT regime with closed-form Biot–Savart, runs in your browser, and stays free.

01. · Why move from MEEP for WPT

No Python install, no MEEP compile, no MPI setup.
No FDTD mesh and no Courant time-step study.
Eight WPT topology presets out of the box (Helmholtz, DTC, square, cross).
Runs on any browser.
Public REST API and MCP server for AI agents.

02. · Where MEEP still wins

Photonics, optical resonators, full-wave time-domain studies. For inductive WPT exploration, AirInduct is the faster fit.

03. · Migration path

Sketch and sweep your coil in AirInduct, then port to MEEP only if your study explicitly needs FDTD results.

See the full comparison matrix or try the Helmholtz simulator.

From FDTD scripts to a browser tab.

Open the simulator →Full comparison