Build wires, solenoids, and magnets in your browser. The electromagnetic field lab used in physics classrooms since 2003 — now browser-native, no install.
No signup · Runs on Chromebooks · Used in universities and AP Physics classrooms
Students open a link on any Chromebook or laptop. No desktop-app support tickets. No IT approvals. No version drift.
Every scene is constructed from scratch — drag a solenoid, set the current, see the field. Not a fixed demo on rails.
Linear Integral Convolution. Ampère's law path integrals. Charged particle trajectories in 2D and 3D. Not just arrows.
Drop the live simulator into Canvas, Blackboard, Notion, Google Sites, or your
own course page with a one-line <iframe>. Student-built
scenes are deep-linkable.
Aligned to: AP Physics C · IB Physics HL · NGSS HS-PS2 · Halliday/Resnick Ch. 28–32
Two coaxial current loops produce a uniform field — the classic setup.
Linear Integral Convolution reveals the near-uniform field inside.
Two wires, opposite currents — the textbook repulsive pattern.
Iron filings visualization of the classic dipole pattern from N to S.
$99/year
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Also available: Free Sandbox ($0), Classroom ($299/40), Multi-Classroom ($499/75), District (from $7,500). See all tiers →
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