Is there a free 3D Quickfield alternative for WPT?

Yes — AirInduct Sim is a free, browser-based, full-3D alternative for the inductive WPT regime. Quickfield is limited to 2D / axisymmetric; AirInduct delivers full 3D B and H fields with closed-form Biot–Savart.

When is Quickfield still the right tool?

Quickfield is excellent for axisymmetric or planar 2D problems — solenoids, simple iron-core inductors, basic motor cross-sections. For 3D coil pairs, lateral misalignment and DTC pads, AirInduct is the better fit.

Do I need a Windows desktop to use AirInduct?

No — AirInduct runs in any browser on Mac, Linux, Chromebook, iPad and phone, with no install.

AirInduct Sim

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ALTERNATIVE — QUICKFIELD

3D, NOT 2D

NO INSTALL

BROWSER-NATIVE

The 3D, browser-native Quickfield alternative.

Quickfield is a respected desktop 2D / axisymmetric FEA tool — and limited to 2D. AirInduct Sim covers the inductive WPT regime in full 3D, runs in your browser, and stays free.

01. · Why move from Quickfield

Full 3D B and H fields — not 2D / axisymmetric.
Lateral misalignment, angular tilt and gap sweeps in seconds.
Eight WPT topology presets (Helmholtz, DTC, square, cross) out of the box.
Runs on any browser, no Windows install.
Public REST API and MCP server for AI agents.

02. · Where Quickfield still wins

Axisymmetric solenoids, planar iron-core inductors, classroom 2D demos. AirInduct shines as soon as the geometry breaks 2D symmetry.

03. · Migration path

Sketch the coil in AirInduct using the eight built-in topology presets, sweep parameters in seconds, then export to KiCad, DXF or SPICE for the next stage.

See the full comparison matrix or try the Helmholtz simulator.

From 2D to full 3D, in your browser.

Open the simulator →Full comparison