A Cross Platform and Open Source Electronics Design Automation Suite

From About-page:

KiCad is an open source software suite for Electronic Design Automation (EDA). The programs handle Schematic Capture, and PCB Layout with Gerber and IPC-2581 output. The suite runs on Windows, Linux and macOS and is licensed under GNU GPL v3.

Links:

• Homepage: https://www.kicad.org/
• Download: https://www.kicad.org/download/
• Code: https://gitlab.com/kicad/code/kicad