KiCad is an open-source software suite used for electronic design automation (EDA). It allows users to create schematics and printed circuit board (PCB) layouts. KiCad is popular among hobbyists and professionals alike for its powerful features and flexibility. The software supports various file formats and includes tools for 3D visualization of PCB designs. It also offers a library of components, making it easier to design complex circuits. With a user-friendly interface, KiCad is accessible for beginners while still providing advanced capabilities for experienced designers.