KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
LibrePCB - LibrePCB is a free EDA software to develop printed circuit boards.
Fritzing - Fritzing is an open-source initiative to support designers, artists, researchers and hobbyists to...
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
FreePCB - FreePCB: freeware PCB layout software
Layo1 PCB - For creative PCB-designers