Circuit Lab: draw a circuit on your phone and watch it run

Circuit Lab is a free circuit simulator that runs in your browser and works offline. Place parts on a grid, wire them up, and see live node voltages, moving currents and an oscilloscope, driven by a real transient solver.

• Resistors, capacitors, inductors, potentiometers, switches, and DC, sine, pulse and triangle sources
• Diodes, LEDs, zeners, NPN and PNP transistors, N and P MOSFETs, and op-amps
• A four-channel oscilloscope with probes, triggering, auto-scale and a measurement cursor
• Ready-made examples (RC, RLC, rectifiers, amplifiers, an astable multivibrator) and shareable circuit links

Made by Gavin Kohn at thewoob.com.