Qucs-S

Graphical open-source circuit simulation tool that can call back ends such as ngspice and Xyce.

Details

Qucs-S is a graphical circuit simulation program based on the Qucs project with enhanced SPICE back-end support. It provides a unified graphical interface that can call open-source simulation engines such as ngspice and Xyce, and suits teaching, analogue circuits, circuit prototyping and preliminary validation of semiconductor device models.

Use cases: graphical circuit simulation, SPICE, analogue circuit teaching, device model validation, electronic circuit prototyping

Note: For complex engineering projects, further validation with ngspice, KiCad or a professional EDA flow is recommended.