I'm reluctant to go the KiCAD route because of the open source free aspect which has seen the death of fritzing, it's a risk with KiCAD though unlikely in the short to medium term at least. Cadstar was founded in in Yokohoma and now sits under the umbrella of a Japanese multinational pioneer in CAD systems. As an example, here are the footprints on a design I inherited to clean up for layout. Google for Kicad and simulation and you will find stuff about using Spice with KiCad. Eagle was founded in Germany in and acquired by Autodesk in
nest...