SPICE Made Easy

Net4Spice (n4s) is a simple front end to PySpice / NgSpice which are Python / OS-specific modules you have to install (both are free).

n4s helps visualize your circuit and create complex circuits by linking consecutive ASCII diagrams in any plain text file.

Simulation frequency, and netlist voltages and currents can be readily read off your design without any hassle as it uses MatPlotLib.

N4s is free software! It should run on Windows, Mac, and Linux. Not yet on tablets or phones. It was coded in 2025-2026 by ChenKuang YAP.