Circuit simulator
Build a circuit and watch it run — animated current, live voltage and current probes, and an oscilloscope. Great for seeing what the calculators compute.
Best in landscape
Rotate your phone, tap Fullscreen, or open it in a new tab for room to wire.
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New to it?
- • Right-click — or long-press on a touchscreen — the canvas → Add to drop a component; drag between nodes to wire.
- • Yellow dots show current flow; thickness tracks magnitude.
- • Tap a wire for its voltage and current; use the ☰ menu ▸ Circuits for ready examples.
- • Need just the numbers? The offline calculators show the working step by step.
About this tool
Powered by CircuitJS, the open-source circuit simulator by Paul Falstad and Iain Sharp, released under the GNU GPL v2. ElectroHub embeds it unmodified and claims no ownership of it.
Source & licence