Just adding a note here that gEDA, the GNU EDA suite, is another free software alternative.  Its older than KiCAD by quite a bit.  I got started with gEDA since I was doing PCB&#x27;s before KiCAD, and now have invested in tools and libraries and such and don&#x27;t want to restart.  The functionality seems roughly equivalent -- both have their rough edges, just in different places.