An EDA suite for schematic and circuit board design

KiCad is a free and open-source electronics design automation (EDA) suite.
It features schematic capture, integrated circuit simulation, printed circuit board (PCB) layout, 3D rendering, and plotting/data export to numerous formats.
KiCad also includes a high-quality component library featuring thousands of symbols, footprints, and 3D models.
KiCad has minimal system requirements and runs on Linux, Windows, and macOS.