Coulomb is a simple and elegant circuit simulator.

Features:

• Draw arbitrary circuits
• Plot voltage and current of devices against time
• Save/Load circuits
• Dark Mode support
• Beautiful UI

Available Devices:

• Resistor
• Battery
• Current Source
• AC Voltage Source
• Inductor
• Capacitor
• Diode
• Zener Diode

Problems:

• Circuits containing non-linear devices will most probably not be solvable, because
  the current backend is not good at dealing with non-linear systems, that's
  going to change though.
• Due to the way inductors and capacitors are modeled you can't put two inductors
  in series, or two capacitors in parallel, that's also going to be fixed.